Posted by Anonymous on Sunday, September 26, 2010 at 12:07pm.
Factor the equation to
So the roots are 3 and -2.
Calculate the sum of roots.
A quadratic equation ax²+bx+c=0 has no real roots when the discriminant is less than zero, that is:
For the present case,
Solve for the inequality in terms of a.
3. and up
Please show some work to indicate where you have difficulties.
i have difficulties with this three equations
2/(2x^(-3)) = 2√2/1
Cross multiply to get:
2*1 = (2√2)*(2x^(-3))
Cross multiply again:
Can you take it from here?
Solve for x by factoring
similar to a).
Post your answer for checking if you wish.
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