Question
Asked Nov 19, 2019
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i need to know how to solve for the exact solution and smaller x value and larger x value for the equation.

x2 + x − 1 = 0

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Expert Answer

Step 1

To find the exact solution of  the given equation.

            x2 + x – 1 = 0

Step 2

Using the quadratic formula, solution of a quadratic equation:

ax2 + bx + c = 0 is as below.

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-btb- 4ac 2a

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Step 3

In the given equation we have a = 1, b = 1 and c...

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-lt/-4x1x (-1) 2(1) -1+v14 2 -1+5 2 1 5 2 2

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Tagged in

Math

Algebra

Equations and In-equations

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