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Gala2k [10]
3 years ago
7

What is the product? (7x) (2x+5)(x2-4x-9)

Mathematics
1 answer:
babunello [35]3 years ago
8 0
14x^2+35x


i think thats how u do it
:)
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How to subtract a negative fraction from a positive fraction?
ikadub [295]
Let's take an example to illustrate this case:

<span>positive fraction = 2/7
</span>
<span>negative fraction = - 3/5

Now we need to subtract  </span><span>- 3/5 from 2/7

Right?

2/7 - (-3/5) = 2/7 + 3/5

here we need to unify the denominators as follows:

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Now back to </span><span>2/7 + 3/5:

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That's it




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3 years ago
(X+h)^3-3(x+h)-(x^3-3x) over h
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What is the interval in which this function is positive?
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