Question

Easton simplified the following expression:

(x2y6z5)(x4y5z3)

If he writes his answer in the form of xaybzc, what is the value of b, the exponent on y?

Numerical Answers Expected!

Answer 1

just add the exponents of y you already have
remember this
a^n*a^m=a^n+m
(x^2y^6z^5)(x^4y^5z^3)=(x^2x^4)(y^6y^5)(z^5z^3)
Example: T^4*T^7=T^4+7=T^11
You add the EXPONENTS, not the variables.