# Solve Using the Quadratic Formula 3x^2-2x-5=0

Solve Using the Quadratic Formula 3x^2-2x-5=0
Use the quadratic formula to find the solutions.
Substitute the values , , and into the quadratic formula and solve for .
Simplify.
Simplify the numerator.
Raise to the power of .
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 one billion seven hundred thirty-one million eight hundred thirty-eight thousand six hundred seven

### Interesting facts

• 1731838607 has 4 divisors, whose sum is 1731924480
• The reverse of 1731838607 is 7068381371
• Previous prime number is 53503

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 44
• Digital Root 8

### Name

Name four hundred five million one hundred forty-two thousand three hundred ninety-two

### Interesting facts

• 405142392 has 32 divisors, whose sum is 1823140872
• The reverse of 405142392 is 293241504
• Previous prime number is 3

### Basic properties

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

### Name

Name one billion seven hundred eighty-two million eight hundred sixty-four thousand five hundred fifty

### Interesting facts

• 1782864550 has 64 divisors, whose sum is 4045427712
• The reverse of 1782864550 is 0554682871
• Previous prime number is 151

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 46
• Digital Root 1