- #1
JakePearson
- 52
- 0
a(a-6) + 9 = 0
a2 - 6a + 9 = 0
(a - 3)(a - 3) = 0
a = -3
is this correct
a2 - 6a + 9 = 0
(a - 3)(a - 3) = 0
a = -3
is this correct
JakePearson said:a(a-6) + 9 = 0
a2 - 6a + 9 = 0
(a - 3)(a - 3) = 0
a = -3
is this correct
The correctness of an algebraic expression depends on several factors, such as the given variables, operations, and the rules of algebra. It is best to check the expression using algebraic rules and simplifying it to see if it matches the given problem.
To check if an algebraic expression is correct, you can use the order of operations (PEMDAS) and solve the expression using substitution. If the simplified expression matches the given problem, then the expression is correct.
Yes, there can be multiple correct algebraic expressions for the same problem. This is because there are often different ways to represent a mathematical problem using variables and operations.
Some common mistakes when writing algebraic expressions include forgetting to use the order of operations, not distributing negative signs correctly, and not simplifying the expression fully. It is important to double-check your work and use algebraic rules to avoid these mistakes.
Yes, you can use any variable in an algebraic expression as long as it follows the rules of algebra. However, it is best to use letters that are commonly used in algebra, such as x, y, and z, to avoid confusion.