faktorkanlah bentuk kuadrat berikut pakai cara

a) x^2 - 7x +12
= x^2 - 3x - 4x + 12
=x(x - 3) - 4(x - 3)
= (x - 4)(x - 3)

b) a^2 -9a - 10
=a^2 + a - 10a - 10
= a(a + 1) - 10(a + 1)
=(a - 10)(a + 1)

c)6 - 7k + k^2
= 6 - 6k - k + k^2
=6(1 - k) - k(1 - k)
= (6- k)(1 - k)

d) x^2 + 24x + 80
= x^2 + 4x + 20x + 80
= x(x + 4) + 20(x + 4)
= (x + 20)(x + 4)

e) x^2 - 49x + 360
= x^2 - 9x - 40x + 360
= x(x - 9) - 40(x - 9)
= (x - 40)(x - 9)

semoga membantu