How do you combine #(5a + 9b) - (2a + 4b)#?

Answer 1
Regroup with the terms that include the variable #a# in one group and the terms that include the variable #b# in the other.
#(5a+9b)-(2a+4b)#
#=(5a-2a) + (9b-4b)#

(That's "5 aardvarks take away 2 aardvarks plus 9 baboons take away 4 baboons")

#=3a + 5b#
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Answer 2

To combine (5a + 9b) - (2a + 4b), we distribute the negative sign inside the parentheses to both terms inside the second set of parentheses, which gives us 5a + 9b - 2a - 4b. Then, we combine like terms, which are the terms with the same variable and exponent. This yields (5a - 2a) + (9b - 4b), which simplifies to 3a + 5b. Therefore, the combined expression is 3a + 5b.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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