Question

Rezolvati in R ecuatia si determinati ce tip de numere,rationale sau iratonale ,sint solutiile ei a) 3√2x+7=0 b) 16x-3(x+1)=5x c) 2,5(x-4)-6x=3-x

Answer 1

3√2x+7=0
3√2x=-7
x=-7/3√2(numar irational)

16x-3(x+1)=5x
16x-3x-3=5x
16x-3x-5x=3
8x=3
x=3/8(numar rational)

2,5(x-4)-6x=3-x
2,5x-10-6x=3-x
2,5x-6x+x=13
-2,5x=13
x=13/-2,5
x=-5,2(numar rational)