QUIZZ [ +50 ]a + b = 162b – a = 10maka, ab = …..?​

Jawaban :

• a + b = 162
• b – a = 10

• a

a = (162 – 10) : 2

a = 152 : 2

a = 76

• b

b = (162 + 10) : 2

b = 172 : 2

b = 86

• Maka ab?

= ab

= 76 x 86

= 6.536

a + b = 162

b – a = 10

________-

2a = 152

a = 152/2

a = 76

a + b = 162

b – a = 10

________+

2b = 172

b = 172/2

b = 86

a = 76

b = 86

maka,

ab

= 76×86

= 6.536

CMIIW