tolong jwb secepatnya ya... 1. x^2 + 9x + 18 2. x^2 + 15x + 56 3. x^2 + 10x + 24 4. 3x^2 + 10x - 8 {tolong dengan cara/jlnnya ya bsk di kumpul, & jngn asal, mak

1. x^2 + 9x + 18
= x^2 + 3x + 6x + 18
= x(x + 3) + 6(x + 3)
= (x + 6)(x + 3)

2. x^2 + 15x + 56
= x^2 + 8x + 7x + 56
=x(x + 8) + 7(x + 8)
=(x + 7)(x + 8)

3. x^2 + 10x + 24
= x^2 + 6x + 4x + 24
= x(x + 6) + 4(x + 6)
= (x + 4)(x + 6)

4. 3x^2 + 10x - 8
= 3x^2 + 12x - 2x - 8
= 3x(x + 4) -2(x + 4)
= (3x - 2)(x +4)

semoga membantu