Simplify:$\left(3x^2-2\right)\left(x+11\right)$

Simplify: $\left(2x^2+9\right)\left(2x^2-7\right)$

Simplify:$\left(3x+5\right)\left(6x+10\right)$

Simplify: $\left(-13x^2-9x\right)^2$

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

Simplify: $\left(-x+25\right)^2$

Simplify: $\left(2x+10\right)^3$

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

Simplify: $\left(x^2-6\right)\left(x^2-6\right)$

Simplify: $\left(-7x-5\right)^2$