# Solve Using the Quadratic Formula x^2-25=0

Solve Using the Quadratic Formula x^2-25=0
Use the quadratic formula to find the solutions.
Substitute the values , , and into the quadratic formula and solve for .
Simplify.
Simplify the numerator.
Raising to any positive power yields .
Multiply by .
Multiply by .
Rewrite as .
Pull terms out from under the radical, assuming positive real numbers.
Multiply by .
Simplify .
The final answer is the combination of both solutions.
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### Name

Name two hundred seventeen million one hundred six thousand seventy-two

### Interesting facts

• 217106072 has 32 divisors, whose sum is 743055120
• The reverse of 217106072 is 270601712
• Previous prime number is 71

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 26
• Digital Root 8

### Name

Name two billion twenty-three million nine hundred ninety-five thousand two hundred sixty-five

### Interesting facts

• 2023995265 has 8 divisors, whose sum is 2571664680
• The reverse of 2023995265 is 5625993202
• Previous prime number is 17

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 43
• Digital Root 7

### Name

Name two hundred twelve million seven hundred fifty-eight thousand fifty

### Interesting facts

• 212758050 has 32 divisors, whose sum is 348192000
• The reverse of 212758050 is 050857212
• Previous prime number is 23

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 30
• Digital Root 3