Question

Factorise:x
${x}^{2}$
​

Answer 1

Step-by-step explanation:

Consider the form

x

2

+

b

x

+

c

. Find a pair of integers whose product is

c

and whose sum is

b

. In this case, whose product is

−

2

and whose sum is

1

.

−

1

,

2

Write the factored form using these integers.

(

x

−

1

)

(

x

+

2

)