Problema Solution
solve quadratic equation. x2 - 2x - 13 = 0
x2 + 12x - 64 = 0
Answer provided by our tutors
x^2 - 2x - 13 = 0
(2+-sqrt((-2)^2-4*1*-13))/(2) = x=4.741657 and x=-2.741657
x^2 + 12x - 64 = 0
(x-4)(x+16) = 0
x = 4 and x= -16
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