Question

Hm 39/50 ;-;

5x + 4x × 5y - 4y

x = 2
y = 4 ​

Answer 1

Answer 2

Penyelesaian :

Dik :

• x = 2

• y = 4

Dit :

• 5x + 4x × 5y - 4y

Jawab :

• 5x + 4x × 5y - 4y

• 5(2) + 4(2) × 5(4) - 4(4)

• = ( 5 + 5 ) + 4(2) × 5(4) - 4(4)

• = 10 + 4(2) × 5(4) - 4(4)

• = 10 + ( 4 + 4 ) × 5(4) - 4(4)

• = 10 + 8 × 5(4) - 4(4)

• = 10 + 8 × ( 5 + 5 + 5 + 5 ) - 4(4)

• = 10 + 8 × ( 10 + 5 + 5 ) - 4(4)

• = 10 + 8 × ( 10 + 10 ) - 4(4)

• = 10 + 8 × 20 - 4(4)

• = 10 + 8 × 20 - ( 4 + 4 + 4 + 4 )

• = 10 + 8 × 20 - ( 8 + 4 + 4 )

• = 10 + 8 × 20 - ( 8 + 8 )

• = 10 + 8 × 20 - 16

• = 10 + ( 8 × 20 ) - 16

• = 10 + 160 - 16

• = ( 10 + 160 ) - 16

• = 170 - 16

• = 154

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