The roots ARE the answer(s).
x2 - 16 = 0
Add 16 to each side of the equation:
x2 = 16
Take the square root of each side:
x = -4 or +4 .
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x2 + 11x + 30 = 0 (x + 5)(x + 6) = 0 so the roots are -5 and -6
Doesn't have integer roots. Quadratic formula gives roots as 3.71 and -5.38.
To the nearest hundredth, roots are -1.71 and 3.21
-4,3 are the roots of this equation, so for the values for which the sum of roots is 1 & product is -12
x2 + 4x = 0 ⇒ x(x + 4) = 0 ⇒ x = 0 or x = -4