(81 - m2) = (9 - m)(9 + m)
4x2-81
eigthy one plus a number
x + 81
(B - A)2 - 81 or (B - A + 9)(B - A - 9) If the starting point, A, is taken as zero the the expression simplifies to (B + 9)(B - 9)
-79
(81 - m2) = (9 - m)(9 + m)
x2-81 = (x-9)(x+9)
A factor = a number which can be divided into the given number with no remainder Yes. It's the only factor of 81 (apart from 9, 27 and 81 itself).
It is 8(80b+81) when factored
The factors of 81 are 1, 3, 9, 27, and 81. There is no common factor for a single number; a common factor is a factor of two or more given numbers. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers. For example, 17 is the GCF of 34, 51, and 102 because it is the largest number that is a factor common to all three numbers.
It can be. 81 is a factor of 162.
The expression is likely 4x2 - 36x +81 which is the same as (2x - 9)(2x - 9) or (2x - 9)2
The HCF of the given three numbers is 1
4x2-81
19 is not a factor of 81. Factors of 81 are 1, 3, 9, 27, and 81
(3X + 9) (X + 9)