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5 pangkat x² - 2x = 5³
x² - 2x = 3
x² - 2x - 3 = 0
b) 2 pangkat x² - 6 = 1 / 32
=2 pangkat x² - 6 = 2 pangkat -5
= x² - 6 = -5
=x² - 6 + 5 = 0
c) 4 pangkat 2x² +2x = 8
= 4 pangkat 2x² + 2x = 2³
= 2x² + 2x = 3
=2x² +2x - 3= 0
d) 9 pangkatx²+ 2 = 27 pangkat-3x
= 3² pangkat x² + 2 = 3³ pangkat - 3x
=3 pangkat 2x²+ 4 = 3pangkat -9x
= 2x²+ 4 = - 9x
= 2x² + 9x + 4 =0