Question

(x+2)square-7x=xsquare+3x-4
check and solve is it is quadratic equation
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Answer 1

$(x+2)^{2}-7x=x^{2}+3x-4\\\\Simplifying\\\\x^{2}+4+4x-7x=x^{2} +3x-4\\\\x^{2} -x^{2}+4-3x=3x-4\\\\4-3x=3x-4\\6x=8$

No, it's not a quadratic equation