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What is the product of a number n-1 and the number n plus 1 is always equal?
Wiki User
∙ 14y ago
Difficult to tell without brackets, but (n-1)*(n+1) = n^2 - 1 [in other words, n squared minus 1] is a useful algebraic identity.
Wiki User
∙ 14y ago
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Dose a negative number plus a negative number equal a positive number?
No. The sum of two negative numbers will always be a negative number. If, however, you multiply the numbers, their product will be positive.
What does odd plus even equal?
An odd number plus an even number will always be an odd number.
Is an even number plus an even number always even?
Yes, an even number plus an even number is always even. Also, and odd number plus an odd number is always even.
What does a minus and a plus equal?
a minus and a plus equal a minus number yeh dude
What does a positive number plus a negative number equal?
A negative number.
Dose a negative number plus a negative number equal a positive number?
No. The sum of two negative numbers will always be a negative number. If, however, you multiply the numbers, their product will be positive.
What does odd plus even equal?
An odd number plus an even number will always be an odd number.
When does a negative number plus a negative number equal a negative?
Always.
What is the product of a number plus six and three that is equal to twelve?
-2
What does odd plus odd always equal?
An even number
Does a odd number plus a odd number always equal a even number?
Yes.
Does an irrational plus a rational number equal an irrational number?
Yes, always.
-5 x - 20?
-25
What does a negative number plus a negative number equal?
A negative plus a negative still gives a negative answer.
Does x squared plus x plus 41 always equal a prime number?
No. it's not a prime number when x = 40, 41, 81,82 ...
What is the product of 8 and 5 plus the product of 5 and 8 is equal to?
It is: 80
Is an even number plus an even number always even?
Yes, an even number plus an even number is always even. Also, and odd number plus an odd number is always even.
