Question

Factoize those 2 questions using "ac"method must include all steps

Answer 1

(2x + 5)(3x - 7), (x + 4)(x - 2)

Explanation:

a = 6, b = 1, c = -35

? × ? = ac = 6 × -35 = - (2 × 3 × 7 × 5)

? + ? = b = 1

3 × 5 -(negative sign from above) 2 × 7 = 15 - 14 = 1 = b

`(1)/(6)(6x + 15)(6x + (-14))`

=
`(1)/(6)(3)(2x + 5)(2)(3x - 7)`

=
`(2x + 5)(3x - 7)`

a = 1, b = 2, c = -8

? × ? = ac = 1 × -8 = -(2 × 2 × 2) = 4 × -2

? + ? = b = 2

4 + (-2) = 2 = b

`(1)/(1)(1x + 4)(1x + (-2))`

=
`(x + 4)(x - 2)`