x(7 – x) > 8
A.
2
B.
8
C.
–1
D.
0

x(7 – x) > 8
A.
2
B.
8
C.
–1
D.
0

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Start by distributing that x.
x(7 -x) > 8
7x + x^2 > 8
x^2 + 7x -8 > 0
(x+8)(x-1) > 0
x = -8
x = 1

Then substitute each back into the original equation, and see which one is true.

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