1.x2=1692.x2-49=03.x2-12=04.9x²=225​

Jawaban:

1. 13

2. 7

3. 2√3

4. 5

Penjelasan dengan langkah-langkah:

1. X² = 169

X = √169

= 13

2. X² – 49 = 0

X² = 49

X = √49

= 7

3. X² – 12 = 0

X² = 12

X. = √12

= √4.3

=2√3

4. 9X² = 225

X² = 225/9

X² = 25

X = √25

= 5

maaf jika salah

Jawaban:

1. x²= 169

x =√169

x =13

2. x²-49=0

x² = 49

x =√49

x = 7

3. x²-12= 0

x² =12

x =√12

x =3.46…

4. 9x² = 225

x² =225:9

x² = 25

x =√25

x = 5