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a) 3
b) 4
c) 1
d) 0
correct answer is: d) 0
Formula use: \left(a+b\right)^3=a^3+3a^2b+3ab^2+b^3
Here, given expression is :
\left(x\right)^3+6x^2+12x+8
\rightarrow\left(x\right)^3+3.\left(x\right)^2.2+3.x.\left(2\right)^2+\left(2\right)^3
\rightarrow\left(x+2\right)^3
Now, put the value of ‘x’, we get :
\rightarrow\left(-2+2\right)^3
\therefore 0
Ans: 0.
