Question

Factorise fully x^2-3x+2

Answer 1

Answer:

(x−1)(x−2)

Step-by-step explanation:

The middle number is -3 and the last number is 2.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get -3

Multiply together to get 2

Can you think of the two numbers?

Try -1 and -2:

-1+-2 = -3

-1*-2 = 2

Fill in the blanks in

(x+_)(x+_)

with -1 and -2 to get...

(x-1)(x-2)