$\left(9x^2-10\right)\left(9x^2+10\right)$

$\left(6x^2-10\right)\left(6x^2+10\right)$

$\left(15x-6y\right)\left(15x+6y\right)$

$\left(6x-15y\right)\left(6x+15y\right)$

$\left(50x^9y^{18}z^{32}-30x^4y^3z^2\right)\left(50x^9y^{18}z^{32}+30x^4y^3z^2\right)$

$\left(80x^9y^{16}z^{32}-30x^4y^3z^2\right)\left(80x^9y^{16}z^{32}+30x^4y^3z^2\right)$

$\left(12x^3-13\right)\left(12x^3+13\right)$

$\left(6x^2-10\right)\left(6x^2+10\right)$

$\left(20x^9-10y\right)\left(20x^9+10y\right)$

$\left(6x^9-10\right)\left(6x^9+10\right)$

$\left(9x^6-18x^2\right)\left(9x^6+18x^2\right)$

$\left(3x^6-16x^2\right)\left(3x^6+16x^2\right)$

$\left(9x^2y^3-10y\right)\left(9x^2y^3+10y\right)$

$\left(7x^2y^3-4y\right)\left(7x^2y^3+4y\right)$

$\left(14xy^3z^6-21x^{12}y^{24}\right)\left(14xy^3z^6+21x^{12}y^{24}\right)$

$\left(14xy^3z^6-21x^{12}y^{26}\right)\left(14xy^3z^6+21x^{12}y^{26}\right)$

$\left(9x^2-10\right)\left(9x^2+10\right)$

$\left(8x^6-25\right)\left(8x^6+25\right)$

$\left(9x^2y^3-10y\right)\left(9x^2y^3+10y\right)$

$\left(7x^2y^3-4y\right)\left(7x^2y^3+4y\right)$