How do you find the product of (-9x^2-10y)^2? Algebra Polynomials and Factoring Multiplication of Polynomials by Binomials 1 Answer Alan P. Jul 8, 2016 (-9x^2-10y)^2=color(blue)(81x^4+180x^2y+100y^2) Explanation: In general (a+b)^2=a^2+2ab+b^2 If a=-9x^2 and b=-10y then color(white)("XXX")a^2color(white)("XXX")=81x^4 color(white)("XXX")2abcolor(white)("XX")=180x^2y color(white)("XXX")b^2color(white)("XXX")=underline(100y^2) color(white)("XXXXXXXXXX")81x^4+180x^2y+100y^2 Answer link Related questions What is FOIL? How do you use the distributive property when you multiply polynomials? How do you multiply (x-2)(x+3)? How do you simplify (-4xy)(2x^4 yz^3 -y^4 z^9)? How do you multiply (3m+1)(m-4)(m+5)? How do you find the volume of a prism if the width is x, height is 2x-1 and the length if 3x+4? How do you multiply (a^2+2)(3a^2-4)? How do you simplify (x – 8)(x + 5)? How do you simplify (p-1)^2? How do you simplify (3x+2y)^2? See all questions in Multiplication of Polynomials by Binomials Impact of this question 2134 views around the world You can reuse this answer Creative Commons License