Question

Factorise fully


`x {}^(2) + x`

`15a {}^(2) + 19a - 8`

`8x {}^(2) - 6xy - 9y {}^(2)`

`a {}^(2) - ab - a + b`
​

Answer 1

1 . x(x+1)
2.(3a-1)(5a+8)
3.(4x + 3y) ( 3x - 3y)
4.(a+b)