qwestbrook
qwestbrook
23-08-2017
Mathematics
contestada
Solve x2 – 4x – 9 = 29 for x.
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alexy0675
alexy0675
23-08-2017
hi
we have 2x-4x-9=29
we add nine on both sides and get 2x-4x=38.
2x-4x=-2x, so we simplify the equation to -2x=38.
divide by -2 on both sides, x=-19
hope this helps
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sofiyaaa
sofiyaaa
23-08-2017
is the x2 supposed to be x to the power of 2 (x^2) or just x2 which is like 2x?
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