Question

Bantu jawab soal nomor 3-5 dengan cara....

Answer 1

Verified answer

Mapel : Matematika
Kelas : X SMA
Bab : Mutlak

Pembahasan :
3.

13 + |-1 - 4| - 3 - |-8|
= 13 + |-5| - 3 - 8
= 13 + 5 - 3 - 8
= 18 - 3 - 8
= 15 - 8
= 7

Jawaban : D

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4.

|2x - 6| = 2
(2x - 6)² = 2²
(2x - 6)² - 2² = 0
(2x - 4)(2x - 8) = 0
x = 2
x = 4

Hp : {2 , 4}

Jawaban : B

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5.

|2x - 1| = |4x + 3|
(4x + 3)² = (2x - 1)²
(4x + 3)² - (2x - 1)² = 0
(2x + 4)(6x + 2) = 0
x = -2
x = -1/3

Hp : {-1/3 , -2}

Jawaban : B