Question

check (x+1)²=2(x-3) is a quadratic equation or not​

Answer 1

Answer:

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Step-by-step explanation:

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

=>$x^{2}+1^{2}+2×1× x = 2x-6$

$\large\red{\boxed{(a+b) ^{2}=a^{2}+b^{2}+2ab}}$

=>$x^{2}+1+2x =2x - 6$

=>$x^{2}+1+2x-2x =-6$

=> $x^{2}+1+6 =0$

=>$x^{2}+7=0$

Since the degree of the one variable is 2 so, it is quadratic equation.