simplify a(a^2+a+1)+5 and find its value for a=2
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Step-by-step explanation:
Simplifying the given expression
a(a² + a +1 ) + 5
a³ + a² + a + 5
Now, for a = 2, value of the simplified expression
= a³ + a² + a + 5
= 2³ + 2² + 2 + 5
= 8 +4+2+5
= 19
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