The expression 3b2 would normally be simplified to 6b. I am not sure why you wrote it the way you did.
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I expect it is meant to be three times b squared. The browser for posting questions has severe limitations as far as mathematical questions are concerned.
Back to the question:
a is two more than three times a number (b) multiplied by itself.
All expressions DO contain equals signs.
102
no because it has an equal symbol in it
I think you mean this as an answer, not a question. An expression does not have an equals sign (e.g 2x4). An equation does have an equals sign (e.g 2x4=8).
It is an expression and a term that are of equal value
Algebraic equations can be written in word or number form. The equation a 3b2 2 can be written as "a is equal to three times b times 2 plus two.
A number sentence that equals or that has an equal sign.
If symbols do not have an equals then it is an expression.
When the numerical value of a quantity is equal to the unit of that quantity, it means that the quantity being measured is equal to 1 in that unit. This often simplifies calculations and conversions in physics and mathematics.
102
All expressions DO contain equals signs.
no because it has an equal symbol in it
I think you mean this as an answer, not a question. An expression does not have an equals sign (e.g 2x4). An equation does have an equals sign (e.g 2x4=8).
This expression factors as x -1 quantity squared.
It is an expression and a term that are of equal value
A mathematical expression in its' most simplistic form, merely assigns a value to a variable. Don't confuse an expression with an equation. An equation requires a solution. An expression cannot be "solved". It only allows you to determine the value of a variable. This is the expression in words "x is equal to 3" (X is the variable which is equal to the constant number 3) This is the expression in numbers "x=3" The expression in words "y is equal to 6" (Y is the variable which is equal to the constant number 6) The expression in numbers is "y=6" I hope you understand now.
It is the identity property of the equivalence relationship defined by "equals".