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Mathematics, 24.03.2021 02:00 anele22

Here are two steps from the derivation of the quadratic formula. x^2 + b/a x = - c/a
x^2 + b/a x + (b/2a)^2 = - c/a + (b/2a)^2
what took place between the first step and the second step?

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Here are two steps from the derivation of the quadratic formula. x^2 + b/a x = - c/a
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