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Cristinaioana2
a fost răspuns

1) √2x+√2-x=2-√2
2)(x-3)² supra3 -(1-x)(x+1) supra 2=(5x-1)(x+2) supra6 -3

Răspuns :

Renatemambouko
√2x+√2-x=2-√2
√2x-x=2-2√2
x(√2-1)=2(1-√2)
x=2(1-√2)/(√2-1)
x=-2

2)
(x-3)² /3 -(1-x)(x+1) / 2=(5x-1)(x+2) /6 -3
2(x-3)² -3(1-x)(1+x)=(5x-1)(x+2) -18
2x²-12x+18-3+3x²=5x²-x+10x-2-18
-12x+15=9x-20
-12x+15=9x-20
21x=35
x=5/3

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