Math, asked by michealanthony70, 6 months ago

what is the standard form of thequadratic equation 2x+(x-4)(x+1)=9

Answers

Answered by Anonymous

1

2x+(x-4)(x+1)=9

2x+x²+x-4x-4=9

2x+x²-3x-4-9=0

x²-x-13=0

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