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Rory Hart · Answer 1 · 2023-11-02T02:08:30+0000

We need to solve the following equation for x, and choose the positive solution

we substract 135 from both sides of the equation obtaining the canonical form of a quadratic equation, the we apply the quadratic formula with a=4, b=12 and c=-135 then x will be equal to:

$x=\frac{-12+\sqrt[]{144-4(4)(-135)}}{8}=(48-12)/(8)=(9)/(2)=4.5$

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then the positive solution to the equation will be x=4.5

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