Question

QUIZZ MTK +50!!!!
NO NGASAL
PAKE CARA
NO BAHASA ALIEN/GK JELAS

1.
[tex]x^{2} + 7x + 12 = 0[/tex]

2.
[tex]3x^{2} + 4x - 15 = 0[/tex]
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Answer 1

1. HP = {-4, -3}

2. HP = {-3, ⁵⁄₃}

Pembahasan

–› No. 1

x² + 7x + 12 = 0

(x + 4)(x + 3) = 0

x + 4 = 0   atau   x + 3 = 0

x = 0 - 4              x = 0 - 3

x = -4                   x = -3

–› No. 2

3x² + 4x - 15 = 0

(x + 3)(3x - 5) = 0

x + 3 = 0   atau   3x - 5 = 0

x = 0 - 3              3x = 0 + 5

x = -3                   3x = 5

                               x = ⁵⁄₃