Răspunsuri

2014-05-22T19:14:49+03:00
4x la a 3 a = 0 / + 16x
4x la a 3 a=16x / :4
x la a 3 a = 4
Nu cred ca e chiar corect!
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2014-05-22T19:17:39+03:00
4x³ - 16x = 0
4x (x²- 4) = 0
4x=0 ⇒ x₁=0
x² - 4=0 ⇒ x²=4 ⇒x₂=2 , x₃= -2