Q: Can 4 be written as the sum of two squared numbers?

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-6 and -9

It's not possible. For two numbers to have a sum of 13, one would have to be even, that is, divisible by 2.

Yes, that is true.

There are no real numbers with the sum of 4 and a product of -477. The factors of -477 are (1,-477), (3, -159) and (9, -53). The negatives can be switched to the other numbers in those pairs of factors.

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Related questions

There are no two whole numbers which when squared sum to 62. There are infinitely may pairs of irrational numbers that when squared sum to 62, eg 1 and √61, 2 and √58

1 and 3

2 squared = 4 8 squared = 64 2 squared + 8 squared = 4 + 64 = 68 8 squared - 2 squared = 6 squared = 36 The product of 8 x 2 = 16.

All prime numbers greater than 2 are odd numbers. For an odd prime to be written as the sum of two primes, one of the primes must be 2 because two odd primes will produce an even sum. 11 cannot be written as the sum of two primes. 13 = 2 + 11. 17 cannot be written as the sum of two primes. 19 = 2 + 17.

5

It is not clear what the question means: there are 31 2-digit numbers that can be expressed as a sum of two squares.

Yes, Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

4

No.

Those numbers would be 13 and 8. 13 squared + 8 squared This is equal to: 169 + 64 which equals 233 And finally, 13 - 8 equals 5.

The two numbers are 6 and 9

The sum of two numbers is the result given when the two numbers are added together. For example, the sum of 2 and 3 is 5.