Question

If p(x) = x 3 + x 2+ root 5 x + root 5 , then find p( – 5 )

Answer 1

-100-4√5

Explanation:

Given the polynomial expression

p(x) = x³+x²+√5x + √5

p(-5) = (-5)³+(-5)² + √5(-5) + √5

p(-5) = -125 + 25 -5√5 + √5

p(-5) = -100-4√5

This gives the required answer