SOLUTION: Find the range of values of x for which 2x²+7x-15>0
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Question 964898
:
Find the range of values of x for which 2x²+7x-15>0
Found 2 solutions by
josgarithmetic, lwsshak3
:
Answer by
josgarithmetic(39621)
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Roots for x are
and
;
or, -5 and 3/2.
The quadratic function related to the inequality is a parabola with a minimum below the x-axis. The set of x values satisfying the inequality is
or
.
Answer by
lwsshak3(11628)
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Find the range of values of x for which
2x²+7x-15>0
(2x-3)(x+5)>0
number line:
<...+....-5....-...3/2...+.....>
solution:
(-∞, -5) U (3/2, ∞)