Question

$(x + 2) {}^{3} = 2x(x {}^{2} - 1)$
check whether the following are quadratic equations​

Answer 1

Answer:

(x+2) 3=2x(x 2−1)x 3+8+6x(x+2)=2x 3−2xx 3 +8+6x 2+12x=2x 3−2x−x 3+6x 2+14x+8=0 → Non Quadratic