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3 votes
One solution to the problem below is 5. What is the other solution? c^2 - 25 = 0

2 Answers

4 votes

Answer:

c=-5

Explanation:

c^2-25=0

I'm going to solve this by using square root after I get the square termed by itself.


c^2-25=0

Add 25 on both sides:


c^2=25

Square root both sides:


c=\pm √(25)


c=\pm 5

Check!


(5)^2-25=0 \text{ and } (-5)^2-25=0

User ZakSyed
by
8.9k points
2 votes

Answer:

c = -5

Explanation:

Plug in -5 to c in the equation:

c² - 25 = 0

(-5)² - 25 = 0

Simplify. First, solve the power, then solve the subtraction:

(-5)² - 25 = 0

(-5 * -5) - 25 = 0

(25) - 25 = 0

0 = 0 (True)

~

User TheFitGeekGirl
by
8.6k points

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