∛4x+9 = 5, nilai x adalah ...
Penyelesaian:
∛4x+9 = 5
4x + 9 = 5³
4x + 9 = 125
4x = 125 - 9
4x = 116
x = 116/4
x = 29
Pembuktian:
∛4x + 9 = 5
∛4(29) + 9 = 5
∛116+9 = 5
∛125 = 5
∛5x5x5 = 5
5 = 5 ---> Terbukti
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∛4x+9 = 5, nilai x adalah ...
Penyelesaian:
∛4x+9 = 5
4x + 9 = 5³
4x + 9 = 125
4x = 125 - 9
4x = 116
x = 116/4
x = 29
Pembuktian:
∛4x + 9 = 5
∛4(29) + 9 = 5
∛116+9 = 5
∛125 = 5
∛5x5x5 = 5
5 = 5 ---> Terbukti