Diketahui :
x = 5
c = 34
Ditanya :
7x + 8x² - 3c
Jawab :
= 7(5) + 8(5)² - 3(34)
= (7 × 5) + 8(5)² - 3(34)
= 35 + 8(5)² - 3(34)
= 35 + 8(5 × 5) - 3(34)
= 35 + 8(25) - 3(34)
= 35 + (8 × 25) - 3(34)
= 35 + 200 - 3(34)
= 35 + 200 - (3 × 34)
= (35 + 200) - 102
= 235 - 102
= 133
Kesimpulan hasil dari 7x + 8x² - 3c jika diketahui x = 5, dan c = 34 adalah : 133
= ( 7 . 5 ) + 8(5)² - 3.(34)
= 35 + 8(5.5) - 102
= 35 + ( 8 . 25 ) - 102
= 35 + 200 - 102
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Diketahui :
x = 5
c = 34
Ditanya :
7x + 8x² - 3c
Jawab :
7x + 8x² - 3c
= 7(5) + 8(5)² - 3(34)
= (7 × 5) + 8(5)² - 3(34)
= 35 + 8(5)² - 3(34)
= 35 + 8(5 × 5) - 3(34)
= 35 + 8(25) - 3(34)
= 35 + (8 × 25) - 3(34)
= 35 + 200 - 3(34)
= 35 + 200 - (3 × 34)
= (35 + 200) - 102
= 235 - 102
= 133
Kesimpulan hasil dari 7x + 8x² - 3c jika diketahui x = 5, dan c = 34 adalah : 133
7x + 8x² - 3c
= ( 7 . 5 ) + 8(5)² - 3.(34)
= 35 + 8(5.5) - 102
= 35 + ( 8 . 25 ) - 102
= 35 + 200 - 102
= 235 - 102
= 133