"Use the quadratic formula to find the solution..." was answered by our experts

Ormezzani6cuu

Answered question

2022-04-11

Use the quadratic formula to find the solution tothe given equation

x^{2} + x - 9 = 0

x =

Zaria Lamb

Beginner2022-04-12Added 8 answers

Step 1
Given equation is

x^{2} + x - 9 = 0

solution

x =

?
Step 2
Solution:

x^{2} + x - 9 = 0

Roots of equation

a x^{2} + b x - c = 0

x = \frac{- b \pm \sqrt[()]{b^{2} - 4 a c}}{2 a})

x^{2} + x - 9 = 0

a = 1, b = 1, c = - q

x = \frac{- 1 \pm \sqrt[()]{{(1)}^{2} - 4 (1) (- q)}}{2}

x = \frac{- 1 \pm \sqrt[()]{1 + 36}}{2}

x = \frac{- 1 \pm \sqrt[()]{37}}{2}

x = \frac{- 1 + \sqrt[()]{37}}{2}

x = \frac{- 1 - \sqrt[()]{37}}{2}

x = 2.54

and

- 3.54

szalbierzfytg

Beginner2022-04-13Added 13 answers

Step 1
Quadratic formula:

x = \frac{- b \pm \sqrt[()]{b^{2} - 4 a c}}{2 a}

x = \frac{- 1 \pm \sqrt[()]{{(1)}^{2} - 4 (1) (- q)}}{2}

x = \frac{- 1 \pm \sqrt[()]{1 + 36}}{2}

x = \frac{- 1 \pm \sqrt[()]{37}}{2}

x = \frac{- 1 + \sqrt[()]{37}}{2}

x = \frac{- 1 - \sqrt[()]{37}}{2}

x = 2.54

and

- 3.54

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