Bantu menggunakan cara yang lengkap jelas dan benar Bantu 2 soal dibawah ini

misal p = 3⁻ˣ

    3⁻²ˣ⁻² + 8.3⁻ˣ - 1 > 0
3⁻²ˣ. 3⁻² + 8.3⁻ˣ - 1 > 0
¹/₉. 3⁻²ˣ + 8.3⁻ˣ  - 1 > 0
------------------------------ x 9

3⁻²ˣ + 72.3⁻ˣ - 9 > 0
p² + 72p - 9 > 0

D = b²-4ac
    = 72²-4.1.(-9)
    = 5220

p  = -b + √D / 2a
    = -72 + √5220 / 2
    = -36 + 3√145

-36+3√145 = 3⁻ˣ

Log (-36+3√145) = Log 3⁻ˣ
                              = -x Log 3

x = - ³Log (-36+3√145) ---> x ≈ 1,89

_____0______1,89______

jika x = -1 --> 9 ¹⁻¹+8.3¹ - 1 = 1+27-1 = +
       x = 0 --> 9⁻¹ +8.3⁰ - 1 = ¹/₉ + 8 - 1 = +
       x = 1 --> 9⁻¹⁻¹+8.3⁻¹ - 1 = ¹/₈₁ + ⁸/₃ - 1 = +
       x = 2 --> 9⁻²⁻¹ + 8.3⁻² - 1 = ¹/₇₂₉ + ⁸/₉ - 1 = -

+++ 0++++1,89 ----

hp { x <  - ³Log (-36+3√145)}