Solving quadratics by factoringx2-4x-25=-4x
1 answer:
Answer:
x = ± 5
Step-by-step explanation:
Given
x² - 4x - 25 = - 4x ( add 4x to both sides )
x² - 25 = 0 ( add 25 to both sides )
x² = 25 ( take the square root of both sides )
x = ± 
= ± 5
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Step-by-step explanation:
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Step-by-step explanation:
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-1 is the only answer that is greater than -5
Answer:
60°
Step-by-step explanation:
The measure of the angle in a circle = 360°, hence
× 360° = 
= 60°
