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24-07-2016
Mathematics

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which is a solution to (x-3)(x 9)=-27

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24-07-2016

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(x-3)(x+9)=-27
x^2+6x-27=-27
add 27 to both sides
x^2+6x=0
factor out x
x(x+6)=0
set each to zero
x=0
x+6=0
x=-6

x=0 and or -6

x=-6 or 0

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