2m^2 - 8
-First you should factor out a two.
--> 2(m^2-4)
-You now have something squared minus something else squared; You have m squared minus 2 squared. Whenever you have something squared minus something squared as you do in this case, there is a simple rule to remember: You can reduce that expression into the quantity of the square root of the first number or variable plus the square root of the second number or variable Times the quantity of the square root of the first number or variable minus the second number or variable squared.
--> In the case of your expression:
----> 2(m+2)(m-2)<-----
The value of that expression depends on the value of "x". You can't really simplify it, except that you can factor it by separating the common factor "x".
x³ - x² + x - 3 (x² + 1)(x - 1) - 2
The question contains an expression, not an equation or inequality. There is nothing to solve in an expression.
The question contains an expression but not an equation. You cannot solve an expression.
5
(3 - i)(3 + i)
There are no rational factors.
Without that other number, all you've got is zero.
(x + 6)(x - 6)
x^2 - y^2 - 4 is in its simplest form.
(x - 2)(2x - 3)
x2-81 = (x-9)(x+9)
The expression x2 + 1x - 12 can be factored out as (x - 3)(x + 4)
3x squared minus 25x minus 28
The value of that expression depends on the value of "x". You can't really simplify it, except that you can factor it by separating the common factor "x".
An algebraic expression
The algebraic expression for "k squared minus 11" is k ² -11. This can't be solved because it's only an expression not an equation.