Question

What is (5x)(14x3)?

Answer 1

5 times 14 is what?

Answer 2

70x^4

Answer 3

(ax^b)(cx^d)=acx^b+d

Answer 4

\[5x*14x^3=(5*14)(x)^{1+3}=70x^4\]

Answer 5

multiply the constants, but add the exponents.
In general:
\[(a^n)(b^Y)= ab^{n+y}\]