An expression of "4 less than b" can be represented as b - 4. This means you are subtracting 4 from the variable b. For example, if b is equal to 10, then 4 less than b would be 10 - 4, which equals 6.
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Well, darling, if you want an expression for 4 less than b, you simply write it as b - 4. It's as easy as pie, honey. Just subtract 4 from whatever value b is and you've got your answer.
if a is less than and not equal to b, it is written a < bIf a is less than or equal to b, it is written a ≤ b
The less than symbol looks like this: < This is where A < B ; A is less than B
This expression is an example of the Distributive Property. The expression a(b+c) = ab +ac is true because of the Distributive Property.
If the algebraic expression can be written in the form of a(x)/b(x) where a(x) and b(x) are polynomial functions of x and b(x) ≠0, then the expression is a rational algebraic expression.
9a4-b2=36a-2b=2(18-b) But if you meant 9a^4-b^2 it is not possible to factor