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OpenStudy (anonymous):
solve for x: sqrt{x+7}=x+5
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OpenStudy (anonymous):
check your answer
OpenStudy (anonymous):
Squeaky Think About it !!! How WILL YOU REMOVE A SQRT(1/2).........
OpenStudy (anonymous):
Square both sides, dude. Then foil.
OpenStudy (anonymous):
sqrt{x+7}=x+5 [square both sides] x +7 = (x+5)^2 x +7 = x^2 + 10x +25 0 = x^2 + 9x +18 0 = [x^2 + 3x] + [6x +18] 0 =x [x + 3] + 6[x +3] 0 =[x + 3] [x +6] Hence x = -3 or x = -6
OpenStudy (anonymous):
i got x=-6
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OpenStudy (anonymous):
Yes but there are two roots
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