(a+c)x + x^2 = (x+a)^2 x = ? (in terms of a and b)

[From: ] [author: ] [Date: 11-09-06] [Hit: ]

(x + a)^2 = x^2 + 2ax + a^2
so ax + cx +x^2 = x^2 + 2ax + a^2
thus -ax + cx = a^2
so x(c - a) = a^2
and x = (a^2)/(c - a)

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