Question

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

Answer:

It is a quadratic equation

Step-by-step explanation:

(x−3)(2x+1)=x(x+5)2x ²+x−6x−3=x² +5x

⇒2x ²

+x−6x−3−x²−5x=0

⇒x² −10x−3=0 has its highest power 2

Hence it is a quadratic equation.