Sagot :

tommus

[tex](6x-4)^2+90>36x^2\\(6x)^2-2 \times 6x \times 4 + 4^2 + 90 > 36x^2\\36x^2-48x+16+90>36x^2\\36x^2-48x+106>36x^2\\36x^2-36x^2-48x+106>36x^2-36x^2\\-48x+106>0\\-48x>-106\\48x<106\\x<\frac{106}{48} \\x<\frac{53}{24} \\[/tex]