Question

fie functia f:R→R,F(x)=x+3 si g:R→R,g(x)+2x-1. Aflati solutiile reale ale ecuatiei2f(x)+3g(x)=-5

Answer 1

Bună,

f : |R → |R
f(x) = x+3

g : |R → |R
g(x) = 2x-1

2f(x)+3g(x) = -5.
2(x+3)+3(2x-1) = -5
2x+6+6x-3 = -5
8x+3 = -5
8x = -5-3
8x = -8
x = -8/8
x = -1.



Succes!