# Solve Using the Quadratic Formula 4x^2-8=0

Solve Using the Quadratic Formula 4x^2-8=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 .
Factor out of .
Rewrite as .
Pull terms out from under the radical.
Multiply by .
Simplify .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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### Name

Name two hundred ninety-four million seventy-three thousand seven hundred eighty-seven

### Interesting facts

• 294073787 has 16 divisors, whose sum is 345461760
• The reverse of 294073787 is 787370492
• Previous prime number is 79

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 47
• Digital Root 2

### Name

Name eight hundred eighteen million three hundred sixty-seven thousand eighty-eight

### Interesting facts

• 818367088 has 128 divisors, whose sum is 4757628960
• The reverse of 818367088 is 880763818
• Previous prime number is 209

### Basic properties

• Is Prime? no
• Number parity even
• Number length 9
• Sum of Digits 49
• Digital Root 4

### Name

Name six hundred sixty-three million three hundred nine thousand four hundred seventy-three

### Interesting facts

• 663309473 has 4 divisors, whose sum is 664295748
• The reverse of 663309473 is 374903366
• Previous prime number is 673

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 9
• Sum of Digits 41
• Digital Root 5