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OleMash [197]
3 years ago
11

Using quadratic formula , give your answer as specified x2+4x-1=0 (exact root)

Mathematics
1 answer:
elena-s [515]3 years ago
7 0

Answer: (-2+√5), (-2-√5)

Step-by-step explanation:

<u>1.</u> Reference the formula: [(-b±(√b^2-4ac))/2a]

<u>2.</u> Plug in the values from the equation: [(-4±(√16+4))/2]

<u>3.</u> Simplify: [(-4±(√20))/2]

<u>4.</u> Simplify the root: [(-4±(2√5))/2]

<u>5.</u> Simplify the fraction: [-2±√5]

<u>6.</u> There's your answer: (-2+√5), (-2-√5)

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