Question

check weather x(x-2)+3=(x+1)(x-1) is a quadratic equations​

Answer 1

Answer:

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see the attachment

Answer 2

Answer:

it is not a quadratic equation.

Step-by-step explanation:

$x(x + 2) + 3 = (x + 1)(x - 1) \\ {x}^{2} - 2x + 3 = {x}^{2} + x - x - 1 \\ - 2x + 3 = - 1 \\ - 2 + 4 = 0$

so it is not a quadratic equation