Question

[+13]

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Dik:
• a = 7
• b = 3
• c = 9
• d = 4

Dit:
• 7a+9d×4a+7c×6b-c = ?

✏️. pakai cara​

Answer 1

Diketahui:

• a = 7
• b = 3
• c = 9
• d = 4

Maka,

• 7a + 9d × 4a + 7c × 6b - c

=> 7(7) + 9(4) × 4(7) + 7(9) × 6(3) - 9

=> 49 + ( 36 × 28 ) + 63 × 18 - 9

=> 49 + 1.008 + ( 63 × 18 ) - 9

=> 49 + 1.008 + 1.134 - 9

=> 1.057 + 1.125

=> 2.182 ☑

Answer 2

penyelesaian

7a+9d×4a+7c×6b-c

= 7.7 + 9.4 × 4.7 +7.9 × 6.3 - 9

= 49 + 36 × 28 + 63 × 18 - 9

= 49 + 1.008 + 1.134 - 9

= 49 + 1.008 + 1125

= 1057 + 1125

= 2.182