Question

Check whether the (x+2)³=x³-4 is quadratic equation ?​

Answer 1

Answer:

(x³ + 6x²+ 12x +8) = (x+2)³

= x³ + 6x²+ 12x +8 = x³- 4

= 6x²+ 12x + 12 = 0

∴ These equation has highest power 2 with non-zero coefficient 6.

∴ (x + 2)³=x³ - 4 is a quadratic equation

Answer 2

Answer:

The correct answer is that it is a quadratic equation.

Step-by-step explanation:

Given:  (x+2)³=x³-4

To find: equation is quadratic equation.

We know that, (a+b)³ =a ³+3ab² +3ba² +b³

Therefore,

x³ +6x²+12x+2³ =x ³−4

x³ +6x²+12x+2³ -x ³+4=0

6x ²+12x+12=0

2 IS THE HIGHEST POWER OF x,

So, it is a quadratic equation