Combine like terms to create an equivalent expression. 2/5m-4/5-3/5m
1 answer:
The equivalent expression of is
Step-by-step explanation:
We need to combine like terms to create an equivalent expression. The given expression is:
Like terms:
Like terms are those terms that have the same variables and same exponents.
In the given expression 2/5 m and -3/5 m are like terms.
Combining like terms:
The equivalent expression of is
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Answer:
Here we will use the relationships:
And a number:
is between 0 and 1 if a is positive and larger than 1, and n is negative.
if a is positive and 0 < a < 1, then we need to have n positive such that:
0 < a^n < 1
A)
This is between zero and 1,
B)
This is greater than 1, because the exponent is positive.
C)
Because a is smaller than 1, and the exponent is positive, then the expression is between 0 and 1.
D)
The exponent is negative (and pair) then the expression is between 0 and 1.
Remember that when the exponent is pair, we always have that:
(-N)^m = (N)^m
So (-7)^-2 = 7^-2