coucou
5x -1/x +1 = 22/5
25x -5/x +5 = 22
-5/x = -25x + 17
-5 = -25x² + 17x
0 = -25x² + 17x +5
Δ = 17²-4*-25*5 = 789
x1 = (-17-√789)/-50 ≈ 0,901.....
x2 = (-17+√789)/-50 ≈ -0,221.....
h(-13/7) = 5 (-13/7) -1/-13/5 + 1
-13h/7 = -65/7 -1/-65 +1
-13h = -65 +7/65 + 7
-13h + 58 = 7/65
-845h + 3770 = 7
-845h = -3763
h = 3763/845
h ≈ 4,453........
voila j espere t avoir aider
