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3radical x^2-x-3=-1
Rad4x^2+6x+3=x×2


Răspuns :

1.

-x - 3 + 3x = -1

-x - 3 + 3x + 1 = -1 + 1

2(x - 1) = 0

x = 1.

2.

6x + 3 + 2x = 2x

8x + 3 = 2x

8x = 2x - 3

8x + 3 - 3 = 2x - 3

6x = -3

√4x² + 6x + 3 = x*2

8x = 2x - 3

x = - 1/2.