Question

If (x + 7)³ + (2x + 8)³ +(2x + 3)³ = 3(x + 7) + (2x + 8) +(2x + 3), then what is the value of x?

Answer 1

Answer:

568+;_#+)8_£¢¥®=[¶[ cgxxc explain correctly

Answer 2

Answer:

first  question is wrong

the question in original format  

a^3 +b^3+c^3  -3abc =(a+b+c)(a^2+b^2 +c^2 -ab-bc-ca)

to become  a^3+b^3+c^3 = 3abc ; either a+b+c= 0    (or)  a^2 +b^2 +c^2- ab-bc-ca  =0

{ a^2 +b^2 +c^2- ab-bc-ca  =0  is a quadratic equation, this might not be-0}

so a+b+c  =0 ; x+7+2x+8 +2x+3 = 0

5x +  18 = 0  ;

so x = -3.6