SOLUTION: complete the square: 2x^2+x-28=0

Question 820464: complete the square: 2x^2+x-28=0
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
2x^2 + x - 28 = 0
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the above quadratic equation is in standard form, with a=2, b=1, and c=-28
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
2 1 -28
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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the two real roots (i.e. the two x-intercepts), of the quadratic are:
x = 3.5
x = -4
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Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
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Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
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Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
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