Question

x²+3x+1=(x-2)² check wheather the following are quadratic equations​

Answer 1

Answer:

Step-by-step explanation:

x^2+3x+1=(x-2)^2

x^2+3x+1=x^2+4-4x

x^2-x^2+3x+4x+1=4

7x=3

the equation is not quadratic.

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Answer 2

Hi there !!

x²+3x+1 = (x-2)² [(a+b)²= a²+b²-2ab]

x²+3x+1 = x² + 4 - 4x

x² will cancel

3x + 1 - 4 +4x = 0

7x-3 =0

This is not a quadratic equation, as it dont have degree of 2 .

Thankyou :)