How to simple form please

The solution of the given questions are below,

1) (x+5)(x-2)

2) (x-3)(x+2)

3) (x+5)(x+3)

4) (x-4)(x-3)

Step-by-step explanation:

1) + 3x -10

= + 5x - 2x -10

= x( x+5) -2(x+5)

=(x+5)(x-2)

2) - x - 6

= - 3x +2x - 6

= x(x -3) +2( x-3)

=(x-3)(x+2)

3) +8x +15

= +5x + 3x +15

= x(x+5) +3(x+5)

= (x+5)(x+3)

4) -7x +12

= - 4x -3x +12

= x(x-4) -3(x -4)

=(x-4)(x-3)

-2 is the right

i think asking google will you get the answer to that question