Question

Check whether the following are Quadratic Equations:

i) x2+2x+1=(4-x)2+3​

Answer 1

Answer:

Yes it is..

Step-by-step explanation:

x^2+2x+1=8-2x+3

x^2+2x+1=5-2x

x^2+2x+1+2x-5=0

x^2+4x-4=0

Hence it is a Quadratic Equation..

Hope it helps you..

Answer 2

Answer: The given equation is quadratic equation.

Step-by-step explanation: x2+2x+1=(4-x)2+3

                                       ⇒  x2+2x+1=8-2x+3

                                       ⇒    x2+2x-10=-2x

                                       ⇒     x2+2x+2x-10=0

                                        ⇒     x2+4x-10=0.