Question

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

Answer 1

Answer:

c = -5

Step-by-step 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)

~

Answer 2

Answer:

c=-5

Step-by-step 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:

$c=\pm \sqrt{25}$

$c=\pm 5$

Check!

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