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Questions

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Time

Score

Multiplying two binomials

Multiply: $\left(2x-10\right)\left(7x^3-13\right)$

$16x^4-26x+130$

$14x^4-70x^3-26x+130$

Multiply: $\left(x+11\right)\left(x+5\right)$

$x^2+16x\ +55$

$x^2+19x\ +32$

Multiply: $\left(3x^2+4\right)\left(x+15\right)$

$3x^3+45x^2+4x+60$

$9x^3+45x^2+5x+60$

Multiply: $\left(4x^4-4\right)\left(4x^4-4\right)$

$16x^8-32x^4+16$

$18x^8-32x^4+16$

Multiply: $\left(x+5\right)\left(x-9\right)$

$x^2-4x\ +45$

$x^2-8x\ +45$

Multiply: $\left(x^3-12\right)\left(x^3-9\right)$

$x^9+21x\ ^3+108$

$x^6+21x\ ^3+108$

Multiply: $\left(5x-5\right)\left(x+13\right)$

$x^2+55x\ -65$

$x^2+60x\ -65$

Multiply: $\left(2x^2+4\right)\ \left(x^2-3\right)$

$2x^4-2x^2+12$

$2x^4-3x^2+19$

Multiply: $\left(x-7\right)\left(x+10\right)$

$x^2+7x\ +70$

$x^2+3x\ +70$

Multiply: $\left(2x+6\right)\left(2x+7\right)$

$4x^2+26x+42$

$4x^2+36x+53$

Questions

Time

Score

Multiplying two binomials

Multiply: $\left(2x-10\right)\left(7x^3-13\right)$

$16x^4-26x+130$

$14x^4-70x^3-26x+130$

Multiply: $\left(x+11\right)\left(x+5\right)$

$x^2+16x\ +55$

$x^2+19x\ +32$

Multiply: $\left(3x^2+4\right)\left(x+15\right)$

$3x^3+45x^2+4x+60$

$9x^3+45x^2+5x+60$

Multiply: $\left(4x^4-4\right)\left(4x^4-4\right)$

$16x^8-32x^4+16$

$18x^8-32x^4+16$

Multiply: $\left(x+5\right)\left(x-9\right)$

$x^2-4x\ +45$

$x^2-8x\ +45$

Multiply: $\left(x^3-12\right)\left(x^3-9\right)$

$x^9+21x\ ^3+108$

$x^6+21x\ ^3+108$

Multiply: $\left(5x-5\right)\left(x+13\right)$

$x^2+55x\ -65$

$x^2+60x\ -65$

Multiply: $\left(2x^2+4\right)\ \left(x^2-3\right)$

$2x^4-2x^2+12$

$2x^4-3x^2+19$

Multiply: $\left(x-7\right)\left(x+10\right)$

$x^2+7x\ +70$

$x^2+3x\ +70$

Multiply: $\left(2x+6\right)\left(2x+7\right)$

$4x^2+26x+42$

$4x^2+36x+53$

Incorrect

Great!

Questions

Time

Score

Multiplying two binomials

Multiply: ﻿(2x−10)(7x3−13)\left(2x-10\right)\left(7x^3-13\right)(2x−10)(7x3−13)﻿

﻿16x4−26x+13016x^4-26x+13016x4−26x+130﻿

﻿14x4−70x3−26x+13014x^4-70x^3-26x+13014x4−70x3−26x+130﻿

Multiply: ﻿(x+11)(x+5)\left(x+11\right)\left(x+5\right)(x+11)(x+5)﻿

﻿x2+16x +55x^2+16x\ +55x2+16x +55﻿

﻿x2+19x +32x^2+19x\ +32x2+19x +32﻿

Multiply: ﻿(3x2+4)(x+15)\left(3x^2+4\right)\left(x+15\right)(3x2+4)(x+15)﻿

﻿3x3+45x2+4x+603x^3+45x^2+4x+603x3+45x2+4x+60﻿

﻿9x3+45x2+5x+609x^3+45x^2+5x+609x3+45x2+5x+60﻿

Multiply: ﻿(4x4−4)(4x4−4)\left(4x^4-4\right)\left(4x^4-4\right)(4x4−4)(4x4−4)﻿

﻿16x8−32x4+1616x^8-32x^4+1616x8−32x4+16﻿

﻿18x8−32x4+1618x^8-32x^4+1618x8−32x4+16﻿

Multiply: ﻿(x+5)(x−9)\left(x+5\right)\left(x-9\right)(x+5)(x−9)﻿

﻿x2−4x +45x^2-4x\ +45x2−4x +45﻿

﻿x2−8x +45x^2-8x\ +45x2−8x +45﻿

Multiply: ﻿(x3−12)(x3−9)\left(x^3-12\right)\left(x^3-9\right)(x3−12)(x3−9)﻿

﻿x9+21x 3+108x^9+21x\ ^3+108x9+21x 3+108﻿

﻿x6+21x 3+108x^6+21x\ ^3+108x6+21x 3+108﻿

Multiply: ﻿(5x−5)(x+13)\left(5x-5\right)\left(x+13\right)(5x−5)(x+13)﻿

﻿x2+55x −65x^2+55x\ -65x2+55x −65﻿

﻿x2+60x −65x^2+60x\ -65x2+60x −65﻿

Multiply: ﻿(2x2+4) (x2−3)\left(2x^2+4\right)\ \left(x^2-3\right)(2x2+4) (x2−3)﻿

﻿2x4−2x2+122x^4-2x^2+122x4−2x2+12﻿

﻿2x4−3x2+192x^4-3x^2+192x4−3x2+19﻿

Multiply: ﻿(x−7)(x+10)\left(x-7\right)\left(x+10\right)(x−7)(x+10)﻿

﻿x2+7x +70x^2+7x\ +70x2+7x +70﻿

﻿x2+3x +70x^2+3x\ +70x2+3x +70﻿

Multiply: ﻿(2x+6)(2x+7)\left(2x+6\right)\left(2x+7\right)(2x+6)(2x+7)﻿

﻿4x2+26x+424x^2+26x+424x2+26x+42﻿

﻿4x2+36x+534x^2+36x+534x2+36x+53﻿

Incorrect

Great!

Multiply: $\left(2x-10\right)\left(7x^3-13\right)$

$16x^4-26x+130$

$14x^4-70x^3-26x+130$

Multiply: $\left(x+11\right)\left(x+5\right)$

$x^2+16x\ +55$

$x^2+19x\ +32$

Multiply: $\left(3x^2+4\right)\left(x+15\right)$

$3x^3+45x^2+4x+60$

$9x^3+45x^2+5x+60$

Multiply: $\left(4x^4-4\right)\left(4x^4-4\right)$

$16x^8-32x^4+16$

$18x^8-32x^4+16$

Multiply: $\left(x+5\right)\left(x-9\right)$

$x^2-4x\ +45$

$x^2-8x\ +45$

Multiply: $\left(x^3-12\right)\left(x^3-9\right)$

$x^9+21x\ ^3+108$

$x^6+21x\ ^3+108$

Multiply: $\left(5x-5\right)\left(x+13\right)$

$x^2+55x\ -65$

$x^2+60x\ -65$

Multiply: $\left(2x^2+4\right)\ \left(x^2-3\right)$

$2x^4-2x^2+12$

$2x^4-3x^2+19$

Multiply: $\left(x-7\right)\left(x+10\right)$

$x^2+7x\ +70$

$x^2+3x\ +70$

Multiply: $\left(2x+6\right)\left(2x+7\right)$

$4x^2+26x+42$

$4x^2+36x+53$