Check whether the following are quadratic equation (x+2)³=2x(x²-1)
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x²+4x+4=2x³-2x
2x³+x²+6x+4=0
it is not a quadratic equation because the power of the variable is 3
2x³+x²+6x+4=0
it is not a quadratic equation because the power of the variable is 3
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Find your solution in pictures.
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