3 years ago

Solve the quadratic equation below for the exact values of x: 4x^2-5=75

1 answer:

6 0

Step-by-step explanation:

$4 {x}^{2} - 5 = 75 \\ 4 {x}^{2} = 75 + 5 \\ 4 {x}^{2} = 80 \\ {x}^{2} = \frac{80}{4} \\ {x}^{2} = 20 \\ x = \pm \sqrt{20} \\ x = \pm 2 \sqrt{5}$

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Answer:

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Answer:

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3 years ago

ANSWER ONLY THANK YOU

viktelen [127]

A. (1,4)

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Step-by-step explanation:

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