Question

PLIZZZ BANTU ...
GUNAKAN CARA
Faktorkan bentuk al jabar berikut:
a. x^2 -x + 2x -2
b. 3a^2 +12a +2a +8
c.2a^2 + 4ab
d. p^2 + 8p - 33
e. 4m^2 - 36
f. a^3 + 6a^2 + 12a +8
g. 15 - 7p - 2p^2

Answer 1

X² - x + 2x - 2
x² + x - 2
x² - x + 2x -2
x(x - 1) + 2(x - 1)
(x + 2)(x - 1)

3a² + 12a + 2a + 8
3a² + 14a +8
3a² + 12a + 2a + 8
3a(a + 4) + 2(a + 4)
(3a + 2)(a + 4)

2a² + 4ab
2a(a + 2ab)

p² + 8p - 33
p² - 3p + 11p - 33
p(p - 3) + 11(p - 3)
(p + 11)(p - 3)

4m² - 36
4m² + 12m - 12m - 36
2m(2m + 6) - 6(2m + 6)
(2m - 6)(2m + 6)

15 - 7p - 2p²
15 - 10p + 3p - 2p²
5(3 - 2p) + p(3 - 2p)
(5 + p)(3 - 2p)

Answer 2

A. x^2 - x + 2x -2
= x^2 + x - 2
= (x+2) (x-1)
= x = -2 v x= 1
b. 3a^2 + 12a + 2a + 8
= 3a^2 + 14a + 8
= (3a+2) (a+4)
= a= -2/3 v a=-4
c. 2a^2 + 4ab
=2a(a+2b)
= a= 0 v a=-2b
d. p^2 + 8p - 33
= (p+11) (p-3)
= p=-11 v p=3
e. 4m^2 - 36
= 4 (m^2 - 9)
= 4 (m-3)(m+3)
= 4 v m=3 v m=-3
f. a^3 + 6a^2 + 12a +8
= (a+2)(a+2)(a+2)
g. -2p^2 -7p + 15
= (-2p+3)(p+5)