Q. 3 F5.0( 3 Votes )

# Solve the following equations for x:

Given:-

Take

We know that, Formula

Thus,

40 – 8x2 = 158x

8x2 + 158x – 40 = 0

4x2 + 79x – 20 = 0

4x2 + 80x – x – 20 = 0

4x(x + 20) – 1(x + 20) = 0

(4x – 1)(x + 20) = 0

4x – 1 = 0 or x + 20 = 0

Since,

x > 0

So,

is the root of the given equation

Therefore,

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Solve the following equation for x :

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