Question

Ma poate ajuta cineva la 3 va rog?????

Answer 1

8√2x-3(5√2x-4)+7√2=2(6x-4√2)+2√2(x+3√2)⇔

⇔8√2x-15√2x+12=12x-8√2+2√2x+12⇔

⇔-7√2x+12=12x-8√2+2√2x+12⇔

⇔-7√2x+12-12x+8√2-2√2x-12=0⇔

⇔-9√2x-12x=-8√2⇔

⇔(-9√2-12)x=-8√2⇔

⇔x=-8√2/-9√2-12⇔

Dupa ce am rationalizat avem ca:

x=(144+96√2)/18.

Bafta!

Answer 2

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