0
I assume you mean;
X^2 - 72X - 735 = 0
The only way I would do this is by the quadratic formula
discriminant
(-72)^2 - 4(1)(-735) = 8124 and means two real roots
X = - b (+/-) sqrt(b^2-4ac)/2a
a = 1
b = - 72
c = - 735
X = - (-72) (+/-) sqrt[(-72)^2 - 4(1)(-735)]/2(1)
X = 72 (+/-) sqrt(8124)/2
X = [72 (+/-) 2sqrt(2031)]/2
Ugly, but true.
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∙ 13y ago
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