Which of the following are solutions to the equation below? Check all that apply 4x^2 + 20x + 25 = 49

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Sorcrer asked Mar 22, 2023

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Which of the following are solutions to the equation below? Check all that apply 4x^2 + 20x + 25 = 49

Which of the following are solutions to the equation below? Check all that apply 4x-example-1

Mathematics
high-school

Sorcrer asked Mar 22, 2023

by Sorcrer

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Answer:

Simplify and Quadratic Formula
$4x^2+20x+25-49=0\\4x^2+20x-24=0\\x_(1,\:2)=(-20\pm √(20^2-4\cdot \:4\left(-24\right)))/(2\cdot \:4)\\\\x_(1,\:2)=(-20\pm \:28)/(2\cdot \:4)\\\\x_1=(-20+28)/(2\cdot \:4),\:x_2=(-20-28)/(2\cdot \:4)\\\\x=1,\:x=-6$

Explanation:

Anconia answered Mar 29, 2023

by Anconia

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