QUIZ #37

Jawab:

a. x = 5

b. x = 32

c. x = 9

d. x > 2

______________________

Pembahasan Soal:

a.

Soal:

x² = 25

x = ?

Jawab:

x² = 25

x = √25

x = 5

b.

Soal:

2x + 6x = 256

x = ?

Jawab:

2x + 6x = 256

8x = 256

x = 256 : 8

x = 32

c.

Soal:

√x + 3 = 6

x = ?

Jawab:

√x + 3 = 6

√x = 6 – 3

√x = 3

x = 3^2

x = 9

d.

Soal:

x + 4 > 6

x = ?

Jawab:

x + 4 > 6

x > 6 – 4

x > 2

JAWABAN :

A. → x = 5

B. → x = 32

C. → x = 9

D. → x > 2

LANGKAH-LANGKAH :

⟨ Soal Bagian A ⟩

x² = 25

x = √25

x = 5

⟨ Soal Bagian B ⟩

2x + 6x = 256

→ (2 + 6)x = 256

→ 8x = 256

→ x = 256 ÷ 8

→ x = 32

⟨ Soal Bagian C ⟩

√x + 3 = 6

→ √x = 6 – 3

→ √x = 3

→ √x² = 3³

→ x = 9

⟨ Soal Bagian D ⟩

x + 4 > 6

→ x > 6 – 4

→ x > 2

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