SOLUTION: Use any method to solve the equation. If necessary, round to the nearest hundredth. 8x�2 + 18x -24 = 0

Question 473387: Use any method to solve the equation. If necessary, round to the nearest hundredth.
8x�2 + 18x -24 = 0

Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: Quadratic Formula

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 ( notice , , and )

Plug in a=8, b=18, and c=-24

Square 18 to get 324

Multiply to get

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 solver)

Multiply 2 and 8 to get 16

So now the expression breaks down into two parts

or

Now break up the fraction

or

Simplify

or

So the solutions are:

or

or
or
or
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