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iren [92.7K]
3 years ago
9

Choose the solutions to the quadratic equation x^2-8x-9=0

Mathematics
1 answer:
Sindrei [870]3 years ago
3 0

Step-by-step explanation:

x²-8x-9=0

x²-9x+1x-9=0

x(x-9)+1(x-9)=0

(x+1)(x-9)=0

x+1=0 x-9=0

x=-1 x=9

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3 years ago
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Nookie1986 [14]

Hey there!


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SUBTRACT 21 to BOTH SIDES

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NEW EQUATION: -7x > -35


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3 years ago
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