Question

Choose the correct simplification of the expression (5x^4y^2z^2)(3x^4y^3z^5).

Answer 1

(5x^4y^2z^2)*(3x^4y^3z^5).
What is 5*3?

Answer 2

15

Answer 3

are they all multiplied by each other?

Answer 4

in the parenthesis?

Answer 5

Now add all the powers
x^4+x^4=x^8

So what is
y^2+y^3=?
and z^2+z^5=?

Answer 6

It will be 15x^8y^5z7