Question

3x-2 /
(x-1) 2 hole square (x+l) (x+2)​

Answer 1

Answer:

Step-by-step explanation:

The given equation is (x+2)  

3

=2x(x  

2

−1) can be simplified as follows:  

(x+2)  

3

=2x(x  

2

−1)

⇒x  

3

+2  

3

+(3×x×2)(x+2)=2x  

3

−2x(∵(a+b)  

3

=a  

3

+b  

3

+3ab(a+b))

⇒x  

3

+8+6x(x+2)=2x  

3

−2x

⇒x  

3

+8+6x  

2

+12x=2x  

3

−2x

⇒x  

3

+8+6x  

2

+12x−2x  

3

+2x=0

⇒−x  

3

+6x  

2

+14x+8=0

Since the variable x in the equation −x  

3

+6x  

2

+14x+8=0 has degree 3, therefore, it is not of the form ax  

2

+bx+c=0.

Hence, the equation (x+2)  

3

=2x(x  

2

−1) is not a quadratic equation.