Question

a(A2+a+1)+5 and find its value for a=0,a=1,a=-1

Answer 1

Answer:

Let p(a) = a(a²+a+1)+5

i) If a = 0 then

value of p(0) = 0(0+0+1)+5

= 0+5

= 5

ii) If a = 1 then

p(1) = 1(1²+1+1)+5

= 1×3+5

= 3+5

= 8

iii) If a = -1 then

p(-1) = (-1)[(-1)²+(-1)+1]+5

= (-1)[1-1+1]+5

= (-1)×1 + 5

= -1 + 5

= 4

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