Question
Simplify $a\left(a^2+a+1\right)+5$ and find its value for
(a) $a=0$ $\quad$ (b) $a=1$ $\quad$ (c) $a=-1$
(a) $a=0$ $\quad$ (b) $a=1$ $\quad$ (c) $a=-1$
✓
Answer
(ii) (a) 5 $\quad$ (b) 8 $\quad$ (c) 4
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