Question

Choose the correct simplification of the expression (2x2y6z5)(5x4y5z3).

Answer 1

10 x8y30z15

7 x6y11z8

7x8y30z15

10x6y11z8 I believe its a

Answer 2

@phi how long did it take you to achieve the smart score and become a moderater

Answer 3

@iGreen

Answer 4

when you multiply you can switch the order
for example
\[ (2x^2y^6z^5)(5x^4y^5z^3) = 2\cdot 5 \cdot x^2x^4y^6y^5z^5z^3 \]
hopefully you know 2*5 is 10
so the answer has a 10 in it.

you should know that x^2 is short for x*x (x times itself 2 times)
and x^4 is x*x*x*x (times itself 4 times)
so x^2 * x^4 is x*x * x*x*x*x (x times itself 6 times)
of course, it's easier to write x^6 than x*x * x*x*x*x
same idea for the y's and z's

Answer 5

you got the right answer