Question

Check whether the following are quadratic equations:
(x + 1) (x − 1) = (x + 2) (x + 3)

Answer 1

Answer:

Step-by-step explanation:

x+1(x-1)=x²-1

x+2(x+3)=x²+5x+6

x²-1=x²+5x+6

x²-1-x²-5x-6=0

-5x-7=0

5x+7=0

this is not a quadratic equation

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