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1 Unit 1: Pure Mathematics A

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Question 156

The polynomial f(x)f(x)f(x) is defined by f(x)=2x3+9x2−6x−5f(x) = 2x^3 + 9x^2 - 6x - 5f(x)=2x3+9x2−6x−5

a.

Show that f(1)=0f(1) = 0f(1)=0

[1]
b.

Solve the equation f(x)=0f(x) = 0f(x)=0

[4]
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1 Unit 1: Pure Mathematics A Questions

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