Question

Sa se afle suma solutiilornaturale ale inecuatie x²-8x+15≤0.

Answer 1

x²-8x+15≤0
x²-3x-5x+15≤0
x(x-3)-5(x-3)≤0
(x-3)(x-5)≤0
x-3=0
x=3
x-5=0
x=5
S={3; 5}