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(3x + 2)(x - 2) = 0
3x = -2 atau x - 2 = 0
x₁ = -2/3 x₂ = 2
Jadi :
(-2/3 + 2)(-2/3 + 2)
= (-2/3)² - 2(2/3)(2) + 2⁴
= 4/9 - 8/3 + 16
= 4/9 - 24/9 + 16
= -20/9 + 16
= -20/9 + 144/9
= 124/9
= 13 7/9