# Factorising expressions I

This task is about factorising algebraic expressions.

a) |
x^{2} + 9x + 18 can be factorised to
( |

b) |
( |

c) |
x^{2} + x – 12 can be factorised to
( |

d) |
x^{2} – 9x + 20 can be factorised to
( |

e) |
x^{2} – 10x + 21 can be factorised to
( |

f) |
x^{2} – 2x – 24 can be factorised to
( |