Question

Find the factors of the following ​

Answer 1

Answer:

1)(x-7)(x+4)

2)(2x-3)(x+7)

3)(5x+1)(x+3)

Step-by-step explanation:

1) x^2-3x - 28

=> x^2 +4x -7x -28

=> x(x+4) - 7(x+4)

=> (x-7)(x+4)

2) 2x^2 + 11x -21

=> 2x^2 + 14x - 3x - 21

=> 2x(x+7) -3(x+7)

=> (2x-3)(x+7)

3) 5x^2 + 16x + 3

=> 5x^2 + 15x + x + 3

=> 5x(x+3) + 1(x+3)

=> (5x+1)(x+3)

Hope you understood. If yes, then plz don't forget to mark my answer as the brainliest.