tolong di bantu yaaa!
Jawaban:
-1/2 atau 1
{-1/2, 1}
Penjelasan dengan langkah-langkah:
[tex]2\times {4}^{x} - 5 \times {2}^{x} + 2 = 0 \\ 2 \times ({2}^{x} ) {}^{2} - 5 \times {2}^{x} + 2 = 0[/tex]
u= 2^x
[tex]2 {u}^{2} - 5u + 2 = 0 \\ \frac{1}{2} (2u - 4)(2u - 1) = 0 \\ (u - 2)(2u - 1) = 0 \\ u - 2 = 0 \\ u = 2 \\ 2u - 1 = 0 \\ 2u = 1 \\ u = \frac{1}{2} \\ {2}^{x} = 2 \\ x = 1 \\ {2}^{x } = \frac{1}{2} \\ x = - 1[/tex]
[answer.2.content]
