Question

How to simple form please

Answer 1

Answer:

roots are -3,2 for 2)

roots are 5,3 for 3)

roots are -3,-4 for 4)

Answer 2

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) $x^{2}$ + 3x -10

= $x^{2}$ + 5x - 2x -10

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

=(x+5)(x-2)

2) $x^{2}$ - x - 6

= $x^{2}$ - 3x +2x - 6

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

=(x-3)(x+2)

3) $x^{2}$ +8x +15

= $x^{2}$ +5x + 3x +15

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

= (x+5)(x+3)

4) $x^{2}$ -7x +12

= $x^{2}$ - 4x -3x +12

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

=(x-4)(x-3)