ax² + bx + c = 0
3u² + 7u + 2 = 0
a = 3
b = 7
c = 2
faktorkan dengan cara
p × q = ac
p + q = b
⅓ (3u + 6) (3u + 1) = 0
(u + 2) (3u + 1) = 0
u = -2 atau u = -⅓
_____________
3u² + 10u - 8 = 0
b = 10
c = -8
⅓ (3u + 12) (3u - 2) = 0
(u + 4) (3u - 2) = 0
u = -4 atau u = ⅔
#semangat belajar.....
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nomor 1
ax² + bx + c = 0
3u² + 7u + 2 = 0
a = 3
b = 7
c = 2
faktorkan dengan cara
p × q = ac
p + q = b
⅓ (3u + 6) (3u + 1) = 0
(u + 2) (3u + 1) = 0
u = -2 atau u = -⅓
Jadi, akar-akarnya -2 dan -⅓ ✔️
_____________
nomor 2
ax² + bx + c = 0
3u² + 10u - 8 = 0
a = 3
b = 10
c = -8
faktorkan dengan cara
p × q = ac
p + q = b
⅓ (3u + 12) (3u - 2) = 0
(u + 4) (3u - 2) = 0
u = -4 atau u = ⅔
Jadi, akar-akarnya -4 dan ⅔ ✔️
_____________
#semangat belajar.....