Assuming the exponential form, 9a4 - b2 has the factors (3a + b)(3a - b).
You can start by using the formula for the difference of two squares. Actually, after that I don't think you can factor it any further.
(a - b + 2)(a + b + 2)
4a2 + 4ab - y2 + b2 You cannot simplify this expression because it does not contain like terms, but you can factor it such as: 4a2 + 4ab - y2 + b2 = (4a2 + 4ab + b2) - y2 = (2a + b)2 - y2 = [(2a + b) - y][(2a + b) + y]
-23
No. An expression such as b2 -16 does not normally have a distance associated with it.
b2-4ac
a2-b2 = (a-b)(a+b)
x2 - 4 is a special expression that is referred to as a difference of squares. Whenever an expression is in the format: a2 - b2 it can be factored out as: (a + b)(a - b) In the case of x2 + 4, that would be: (x + 2)(x - 2)
(a + b)(a - b)
b2(9b-8)
It cannot factor without imaginary numbers