Question

Factorise x2-8x-65







Urgently, ​

Answer 1

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

−

65

and whose sum is

−

8

.

−

13

,

5

Write the factored form using these integers.

(

x

−

13

)

(

x

+

5