Question

Rezolvati ecuatiile irationala:
(x²-4) · $\sqrt{x+1} =0$
$\sqrt{x+3} - \sqrt{10-x} =0$

Answer 1

x²-4=0
(x-2)(x+2)=0
x=2
x=-2
√x+1=0
x+1=0
x=-1

√x+3=√10-x
x+3=10-x
2x=7
x=7/2