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19-12-2021
Mathematics

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solutions of the quadratic $x^2 + 7x - 18 = 0.$

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bm20350 bm20350

19-12-2021

(x^2+7x-18) can be factored into (x+9)(x-2). Set each part equal to zero and solve for x.

x+9=0 => x=-9
x-2=0 => x=2

I’m guessing the dollar signs aren’t supposed to be there.

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