Factorisation Lesson 3 Flashcards by Y. Laurent | Brainscape

Q

Factorise: x2 + 3x + 2

x2 -3x -10

A

First:

2=?
2=2x1
2+1=3

Second:

10=-5x2
5+2=-3

Third:

(x + 2) (x + 1)
(x + 2) (x - 5)

Finally:

x + 1
x - 5

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