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Racuvlad00
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rezolvati in recuatia
(4x-1)(4x+1)-5x=-4(x-4x patrat)-7(x+3)

Răspuns :

RLoredana
(4x)²-1-5x=-4(x-4x²)-7(x+3)
16x²-1-5x=-4x+16x²-7x-21
16x²-5x-1+4x-16x²+7x+21=0
6x=1-21
6x=-20
x=-20/6
x=-10/3

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