1.

Simplify a(a²+a+1)+5 and find its value for a=-1 and a= 2​

Answer»

a3+a2+a+5

a EQUALS to 1

(1×1×1)+(1×1)+5 = 7

(2×2×2)+(2×2)+(5)

8 + 4 + 5 = 17



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