Question

factorize the question​

Answer 1

Answer:

Step-by-step explanation:

19) x²-6x - 27 =0

    x² -9x + 3x- 27= 0

   x(x-9) + 3 (x-9) = 0

 x = -3 or x= 9

20) let x + y = a

now 2a²-9a - 5

= 2a²-10a+a-5

= 2a(a-5) +1(a-5)

a = 5

therefore x + y = 5

Answer 2

1/3x²-2x-9=1/3x²-3x+x-9=1/3x(x-9)+1(x-9)

= (x-9)(1/3x +1)