find the quadratic equation whose roots are 3 and -8
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Let A = 3
& B = - 8
Formula = x^2 - (a+b) x + ab = 0
= x^2 - (3-8)x + 3×(-8) = 0
= x^2 + 5x - 24 = 0
Answer = x^2 + 5x - 24
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