Question

What is the product of (x+3)(x-3)=7
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Answer 1

Explanation:

What you have here is an equation with two roots. The "product" is (x + 3)(x - 3), which comes out to x^2 - 9.

Thus, you have x^2 - 9 = 7, or x^2 - 16 = 0, and the roots of that are {-4, 4}.