Answer to Question #194084 in Algebra for Josa

Question

3.1. Simplify the following algebraic expressions  -5xy^2 (6xy^2 - 5xy^2 + 6x)?

Answer 1

$-5xy^2(6xy^2-5xy^2+6x)$

$=-5xy^2\times6xy^2-5xy^2\times(-5xy^2)+(-5xy^2)\times6x$

$=-30x^{1+1}y^{2+2}+25x^{1+1}y^{2+2}-30x^{1+1}y^2$

$=-30x^{2}y^{4}+25x^2y^4-30x^2y^2$