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OpenStudy (anonymous):
What number must you add to complete the square? x2 + 4x = 12
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OpenStudy (anonymous):
the x2 = x^2 sorry
OpenStudy (anonymous):
you have to add 4 to both sides. then equation can be solved
OpenStudy (anonymous):
x^2+2(2)(x)+2^2 - 2^2=12
OpenStudy (anonymous):
what is (x+2)^2 =?
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