Question

Simplify each expression. (–5x2y)(3x4)a. 15x6yb. –15x2yc. –15x6yd. –15x8y

Answer 1

The given expression is

$(-5x^2y)(3x^4)$

We will multiply at first -5 by 3

$-5\times3=-15$

Then we will multiply x^2 by x^4 by adding their powers

$x^2\times x^4=x^{2+4}=x^6^{}$

And multiply y by 1 as there is no y in the second bracket, then

$(-5x^2y)(3x^4)=-15x^6y$

The answer is C