Question

Check whether the following are quadratic equations:
(1)(x+1)²=2(x-1)​

Answer 1

★ Answer ☆

━☞ ( X + 1 ) ² = 2 ( X - 1 )

━☞ X² + 2X + 1 = 2X - 2 { ( A + B ) ² = A² + 2AB + B² }

━☞ X² + 2X - 2X + 1 + 2 = 0

━☞ X² + 3 = 0

━☞ This equation is not a quadratic equation

I hope it helps you