solve the inequality using any method
x^2-8x+12<0
3 answers
Princess, Key, or whoever you are -- it's disconcerting to see three similar problems in a row -- all from the same computer. Please stick with one name so that our tutors can help you better.
x^2-8x+12<0
(x-6)(x-2) < 0
so we have "critical" values at x=6 and x=2
mark these on a number line, yielding 3 sections
x<2, test at x=0 in (x-6)(x-2)<0, no!
x between 2 and 6 , test at x=5, yes!
x > 6 , test at x=10, no!
so 2 < x < 6
(x-6)(x-2) < 0
so we have "critical" values at x=6 and x=2
mark these on a number line, yielding 3 sections
x<2, test at x=0 in (x-6)(x-2)<0, no!
x between 2 and 6 , test at x=5, yes!
x > 6 , test at x=10, no!
so 2 < x < 6
thank you reiny for helping me and my causins were useing my computer for help on there math homework also!!! so thank you from all of us
1 answer