no 5 gausah ya. tolong dijawab dengan benar karna besok dikumpulin makasi
Matematika
risma567
Pertanyaan
no 5 gausah ya. tolong dijawab dengan benar karna besok dikumpulin makasi
1 Jawaban
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1. Jawaban Anonyme
2][
3^(x² + x - 2) = 81^(x + 2)
3^(x² + x - 2) = 3^4(x + 2)
x² + x - 2 = 4x + 8
x² - 3x - 10 = 0
(x - 2)(x + 5) = 0
p = 2 ; q = -5
p - q = 2 - (-5) = 7
Opsi D
3][
(1/4)^(x + 2) = ³√8^(2x - 1)
2^-2(x + 2) = 2^3(2x - 1)/3
-2x - 4 = 2x - 1
-4x = 4 - 1
x = -3/4
Opsi E
81^x = 3^(4 × -3/4) = 3^-3 = 1/3^3 = 1/27
4][
√8^(3 - x) = 4 . 2^(1 - 2x)
2^3(3 - x)/2 = 2^(2 + (1 - 2x))
3/2 (3 - x) = 3 - 2x
9 - 3x = 6 - 4x
x = 6 - 9
x = -3
Opsi B