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Alex787 [66]
3 years ago
10

Simplify the expression.-x(5x-4)A. 4x^2 - 5xB -5x -4xC 5x + 4xD -5x^2 + 4x​

Mathematics
2 answers:
Brilliant_brown [7]3 years ago
7 0

it's D because when you distribute the -x the 5x multiplies to -5x^2 then -4 multiplies to 4x since the negatives cancel out.

NemiM [27]3 years ago
6 0
-5x^2+4x is what I believe is the answer
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N = d - 5

2n/(d + 16) = n/d - 1/3 n/d
2n/(d + 16) = 2/3 n/d Divide by 2n
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Here's the tricky part.
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16 = 2d
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so the numerator is d - 5
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Let's see if it checks out.
n = 3
d = 8

2*3 = 6
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New fraction 6/24 = 1/4
(3/8 - 1/3 ) = 1/8
3/8 - 1/8 = 1/4 so it checks with the original conditions put on it.


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