Bantu jawab ya please Yang No 3 ya

a. 3(a - b) - a(a - b) = (3 - a) (a - b)
b. (a + b)x + (a + b)y = (a + b) (x + y)
c. a(a + x) + c(a + x) = (a + c) (a + x)
d. a(a + b) - c(a + b) = (a - c) (a + b)
e. (c - a)y - (c - a)^2 = (c - a) (y - (c - a)) = (c - a) (y - c + a)
f. a^2 + ab - ac - bc = a(a + b) - c(a+b)
g. a^3 - 3a + 2a^2 - 6 = a(a^2 - 3) + 2(a^2 - 3) = (a + 2) (a^2 - 3)
h. a^4b + 1 + a^4 + b = a^4(b + 1) + 1 + b = (b + 1) (a^4 + 1)