SOLUTION: (3 × 3)(5 – 3)(6 + 2) = x2. What’s the value of x?

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Question 648590: (3 × 3)(5 – 3)(6 + 2) = x2. What’s the value of x?
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
3*3 = 9
5-3 = 2
6+2 = 8
9*2*8 = 144
x^2 = 144
sqrt%28144%29 = (plus or minus) 12
The reason it is (plus or minus) 12 is because -12%5E2+=+144 and 12%5E2+=144. A quadratic has two solutions, always.