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Home Q & A Board Science-Related Homework Help Mathematics
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rivers.butterfly rivers.butterfly
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11 years ago
I need an algebraic expression for this phrase, its to go on my study guide for my final in school. PLEASE HELP. (:
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#1
11 years ago
4(3x-10)
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#2
11 years ago
We shall break it down into parts:

[Four times] the [difference of [triple a number] and [- 10]]

So, taking the nested brackets first and calling the "number" x, we get:

[Four times] the [difference of [3 * x] and [- 10]]

Taking the next level:

[Four times] the [3 * x - 10]

Now taking away the final bracket:

4 * (3 * x - 10)

If we like we could distribute the 4, but it's not necessary:

12 * x - 40
wrote...
#3
11 years ago
The other answers are wrong, sorry to say.

Four times the difference of triple a number and -10 would algebraically look like 4(3x-(-10)) which simplified looks like, 4(3x+10) because you are subtracting a negative.

This factors out to be 12x + 40

12x+40 is your answer.
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