Solve x2 – 4x – 9 = 29 for x.

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asked Apr 23, 2018 119k views

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Solve x2 – 4x – 9 = 29 for x.

Mathematics
college

Ptamzz asked

by Ptamzz

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5 votes

is the x2 supposed to be x to the power of 2 (x^2) or just x2 which is like 2x?

Hein Htet Aung answered Apr 24, 2018

by Hein Htet Aung

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1 vote

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

Alon Yeager answered Apr 28, 2018

by Alon Yeager

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