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How do you solve x2 - 10x plus 25 equals 0 by using the quadratic formula?
Wiki User
∙ 11y ago
X2 - 10X + 25 = 0
This is factorable, (X - 5)2, but you asked for this,
X = - b (+/-) sqrt(b2 - 4ac)/2a
a = 1
b = - 10
c = 25
X = - (- 10) (+/-) sqrt[(- 10)2 - 4(1)(25)]/2(1)
X = 10 (+/-) sqrt(100 - 100)/2
X = 10/2
X = 5
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Wiki User
∙ 11y ago
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