Question

rezolvati in R ecuatiile :a) 3(2x-1)=5(x+2) b) (2x-1) la patrat - x(4x-3)=0 c ) (x+√2)√3=2x√3-√6 dau coroanaaaaa

Answer 1

a) 3(2x-1)=5(x+2)
6x - 3=5x + 10
6x - 5x=10+3
x=13
b) (2x-1)² - x(4x-3)=0
4x² - 4x+1 - 4x² +3x=0
- x+1=0
- x= -1
x=1
c ) (x+√2)√3=2x√3-√6
√3x+√6=2x√3-√6
√3x - 2√3x = -√6-√6
- √3x= - 2√6
x= - 2√6/ - √3
x=2√6/√3=    raționalizăm cu √3
x=2√18/3
x=6√2/3
x=2√2

Sper că te-am ajutat!