Question

4. Factorise form of x2-3x - 54 is :
(a) (x+9)(x+6)
(b) (x-9)(x+6)
(c) (x+9)(x-6)
(d)(x-9)(x-6)


​

Answer 1

Answer:

option b is the correct answer ( x-9 ) ( x+6 )

Answer 2

Explaination:

x²-3x-54

=x²+6x-9x-54

=x(x+6)-9(x+6)

=(x+6)(x-9)

x=-6 and x=9

option (b) is the correct ans(x-9)(x+6)