Question

check whether (x+2)^3=x^3-6 is a quadratic equation ​

Answer 1

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

X^3 +2^3+3(x+2)=x^3-6

X^3 +8+3x+6=x^.3-6

X^3+3x +14=x^3-6

X^3+3x=x^3-6-14

X^3+3x= x^3-20

3x+20 = x^3-x^3

3x = 0-20

X= -20/3

Answer 2

Answer:

your answer is

x=-20/3

mark as brainleast