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What are expressions that have the same value for all values of the variables?
Equivalent Expression
What are expressions that have the same value for all values of the variables called?
equivalent expression
What are expressions that have the same value?
Equivalent expressions.
Expressions that simplify to the same expression or value.?
2+2 = 2*2 = 2^2 all simplify to 4. But there is no special name for the three expressions.
What are expressions that contain the same variable?
an algebraic expression
What does equivalent expression mean in math?
It means that two expressions represent the same number; for example, 5 is equivalent to 3 + 2. If there are variables in the expression, it means that the two expressions will evaluate to the same number, for any value assigned to the variable or variables. For example, for any value of x, 2x is the same as x + x; therefore, the two are equivalent.
How do you know if the original expression is equivalent to the simplified expression?
you test it by giving the letters a value say if X equals 5 and Y equals 7 then you calculate both expressions with that value. If both answers are the same, then the simplified expression is correct, or an equivalent.
When two expressions have the same value they are?
equivalent
Can numerical expressions have the same value?
no it is totally no !
When two expressions do not have the same value they are what?
unequal
What are expressions that have the same value called?
They are identities.
Ranger wants to verify that the expression8x – 20 is the correct simplified expression for 4(2x – 5). Explain how to verify the simplified expression?
Sample Answer: To verify, a number needs to be substituted for x in both expressions. Use order of operations to simplify and find the value. The value needs to be the same for both expressions to prove equivalence.
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