Respuesta :
6 * -10 = -60
-60 = -2*2*3*5
How can we make + 11 from these factors:
3*5 - 2*2 = 15 - 4 looks good so we write
6x^2 + 15x - 4x - 10
Now factor this by grouping:-
= 3x(2x + 5) - 2(2x + 5)
so finally the factors are
(3x - 2)(2x + 5)
-60 = -2*2*3*5
How can we make + 11 from these factors:
3*5 - 2*2 = 15 - 4 looks good so we write
6x^2 + 15x - 4x - 10
Now factor this by grouping:-
= 3x(2x + 5) - 2(2x + 5)
so finally the factors are
(3x - 2)(2x + 5)
