SOLUTION: Use any method to solve the equation. If necessary, round to the nearest hundredth. 8xˆ2 + 18x -24 = 0
Quadratic Equations and Parabolas
-> SOLUTION: Use any method to solve the equation. If necessary, round to the nearest hundredth. 8xˆ2 + 18x -24 = 0
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Use any method to solve the equation. If necessary, round to the nearest hundredth.
8xˆ2 + 18x -24 = 0
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Let's use the quadratic formula to solve for x:
Starting with the general quadratic
the general solution using the quadratic equation is:
So lets solve
Plug in a=8, b=18, and c=-24
Square 18 to get 324
Combine like terms in the radicand (everything under the square root)
Simplify the square root (note: If you need help with simplifying the square root, check out this
Multiply 2 and 8 to get 16
So now the expression breaks down into two parts
Now break up the fraction
So the solutions are: