Question

check whether the following is a quadratic equation. (x+2)^3=2x(x^2-1)​

Answer 1

Answer:

The answer to the question is the following is not a quadratic equetion

Answer 2

Answer:

hy mates here is your answer:-----

we know find that it is a quadratic equation or not

we have read that,

ax^2+bx+c=0

if it happen according to the formula then it can be a quadratic equation. So let check out that it is a quadratic equation or not.

(x+2) ^3=2x(x^2-1) [ (a+b) ^3=a^3+b^3+3ab(a+b) ]

(x) ^3+(2) ^3+3×x×2(x+2)

=x^3+8+6x(x+2)

=x^3+6^2+12x+8

So, we find that the equation is not in the form of quadratic equation.

Hope it help u mates..