Question

(iv) x2 - 4x - 5
12. Factorise :
(i) x2 + 7x + 6​

Answer 1

Answer:

I)=x2 - ( 5-1) x-5

=x2-5x-x -5

=x( x-5)-1(x-5)

=(x-5)(x-1)

ii) x2+(6-1) x+6

=x2+6x-x+6

=x(x+6)-1(x+6)

=(x+6) ( x-1)