Question

12. : Check whether the following are quadratic equations: (i) (x - 2)2 + 1 = 2x-3​

Answer 1

⟾ (x+2)² + 1 = 2x-3

⟾ x²+2²+2×x×2+1=2x-3

⟾ x²+4+4x+1=2x-3

⟾ x²+5+4x=2x-3

⟾ x²+5+3+4x-2x=0

⟾ x²+8+2x

Hence, it's a quadratic equation.

Answer 2

Step-by-step explanation:

f(x)=q(x)

f(1)=(1-2)2+1=q(1)=2(1)-3

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

-2+1=2-3

-1=-1

f(x)=q(x)