Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. A Level
  3. Maths CCEA
  5. Question bank

1.1 Algebra and functions

EasyMedium
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677
Question 28

f(x)=x3+6x2+4x−15f(x) = x^3 + 6x^2 + 4x - 15f(x)=x3+6x2+4x−15

a.

Use the factor theorem to show that x=−3x = -3x=−3 is a solution to f(x)=0f(x) = 0f(x)=0

[2]
b.

Find the other solutions to the equation f(x)=0f(x) = 0f(x)=0 giving your answers to 2 decimal places

[5]

1.1 Algebra and functions Questions

  1. A Level
  2. /Maths
  3. /1.1 Algebra and functions