9. Write the quadratic equation having roots 2 and -2.
Added by Travis F.
Step 1
So, if the roots are 2 and -2, we can write: (x - 2)(x + 2) = 0 This is because if x = 2 or x = -2, one of the factors will be zero, making the whole expression equal to zero. Now, we can expand the expression: x^2 - 4 = 0 This is the quadratic equation with Show more…
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