Question

Check x2

+ 3x + 1 = (x – 2)2

is quadratic equation or not ?​

Answer 1

x²+3x+1= (x-2)²

x²+3x+1=x²+4-4x

x²+3x+1-x²-4+4x=0

7x-3= 0

It is not of the form ax²+bx +c=0

Hence, the given equation is not a quadratic equation.

Answer 2

Answer:

Hey mate, I hope it will help you in copy in exam

Step-by-step explanation:

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

therefore, using formula, a2+2ab+b2

x2 + 3x + 1 = x2 + 4 - 4x

x2 + 3x + 1 - x2 - 4 + 4x

7x - 3 = 0

therefore, the highest term is 1.

therefore, it is not in quadratic equation...

thank you..