Question

Which one of the following is not a quadratic equation?
Options:
1. (x+2)²=2(x+3)
2.x²+3x = (-1) (1-3x)²
3.(x+2) (x-1) = x²-2x-3
4. x³- x² + 2x+1=(x +1)³​

Answer 1

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Answer:

1.☑️

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Answer 2

Step-by-step explanation:

$option \: 1$