Question 1049762
I need help please.  Please solve polynomial inequality and express solution set in interval notation  x^2-3x-28<0
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Step 1, solve the equation.
x^2-3x-28 = 0
(x-7)*(x+4) = 0
x = -4, x = 7
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It's a parabola that opens upward.
The zeroes are -4 and 7.
It's below the x-axis between the zeroes --> < 0 between -4 and 7.
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-4 < x < 7 is the solution.