# Evaluate (a+b-c)(a+b+c)

Evaluate (a+b-c)(a+b+c)
Expand by multiplying each term in the first expression by each term in the second expression.
Simplify terms.
Combine the opposite terms in .
Reorder the factors in the terms and .
Subtract from .
Reorder the factors in the terms and .
Subtract from .
Simplify each term.
Multiply by .
Multiply by .
Multiply by by adding the exponents.
Move .
Multiply by .
Reorder and .
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### Name

Name one billion three hundred fifty-three million seven hundred twenty-five thousand nine hundred seventy-eight

### Interesting facts

• 1353725978 has 8 divisors, whose sum is 2047371060
• The reverse of 1353725978 is 8795273531
• Previous prime number is 121

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 50
• Digital Root 5

### Name

Name one billion seven hundred twenty-seven million eight hundred forty-nine thousand two hundred eighty-four

### Interesting facts

• 1727849284 has 32 divisors, whose sum is 4676886720
• The reverse of 1727849284 is 4829487271
• Previous prime number is 19

### Basic properties

• Is Prime? no
• Number parity even
• Number length 10
• Sum of Digits 52
• Digital Root 7

### Name

Name one billion one hundred sixty-five million one hundred twenty-three thousand five hundred sixty-nine

### Interesting facts

• 1165123569 has 8 divisors, whose sum is 1555388992
• The reverse of 1165123569 is 9653215611
• Previous prime number is 823

### Basic properties

• Is Prime? no
• Number parity odd
• Number length 10
• Sum of Digits 39
• Digital Root 3