2. Tentukan nilai dari
a. 27 ⅔
b.4X+l
=64
a. 27 ⅔
b.4X+l
=64
a.
[tex] {27}^{ \frac{2}{3} } = ( { {3}^{3} })^{ \frac{2}{3} } \\ = {3}^{3 \times \frac{2}{3} } \\ = {3}^{ \frac{6}{3} } \\ = {3}^{2} \\ = 9[/tex]
b.
[tex]4x + 1 = 64 \\ 4x = 64 - 1 \\ 4x = 63 \\ x = \frac{63}{4} \\ x = 15 \frac{3}{4} [/tex]
Semoga membantu:D
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