1.1 Algebra and functions

40%

$f(x) = 2x^3 - x^2 - 13x + 14$

a.

Use the factor theorem to show that $(x - 2)$ is a factor of $f (x)$

[2]

b.

Hence, or otherwise, solve the equation $2x^3 - x^2 - 13x + 14 = 0$ giving your answers to 2 decimal places where appropriate

[5]

40%

$f(x) = 2x^3 - x^2 - 13x + 14$

a.

Use the factor theorem to show that $(x - 2)$ is a factor of $f (x)$

[2]

b.

Hence, or otherwise, solve the equation $2x^3 - x^2 - 13x + 14 = 0$ giving your answers to 2 decimal places where appropriate

[5]

1.1 Algebra and functions Questions