Question

rezolvati in r 2x²-5=3

Answer 1

[tex]2 x^{2} =5-3\\ 2 x^{2} =5+3\\ 2 x^{2} =8\\ x^{2} =8:2\\ x^{2} =4\\ x= \sqrt{4} \\ x=2[/tex]

Answer 2

2xla a doua=8
xla a doua=8:2
x la a doua=4
x=2 pt ca 2 la a doua este 4