Question 52070
Product = multiplication
(x)(2x)=72
2x^2=72 [Solve for x]
2x^2/2=72/2
x^2=36 [Take the square root of both sides]
x=6
.
Checking:
(x)(2x) [Plug-in (x=6)]
(6)(2)(6)
72 [Checks out]