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Mars2501 [29]
2 years ago
10

Evaluate the following expression when x=-4 and y=4 x³-x /4y

Formula1" title="\frac{x}{y}" alt="\frac{x}{y}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Simora [160]2 years ago
7 0

Answer: - 60

Step-by-step explanation:

\frac{(-4)^3 - (-4)}{4(4)^-4/4} \\\\= -60

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Can you plz help me with this, because I don’t know how to do this and can u plz explain how to do it
Alecsey [184]

Answer:

Step-by-step explanation:

You can start this in may ways but let's start by isolating one of the parenthesis:

x (x² - 5) = - (x - 3)

x³ - 5x = -x + 3 (here I multiplied x for what's inside the parenthesis and the "minus" signal by the other parenthesis which was (x - 3))

x³ - 5x + x = 3

x³ -4x = 3

x³ -4x -3 = 0 (now this right here is a "depressed cubic equation" and it's one of the toughest sit of all time, so good luck with that, you might wanna take a look at this:

ytb/watch?v=rNDy2ZFvG1E

or maybe I'm doing something wrong and it's simpler than that, but whaterver...)

4 0
2 years ago
I don't really understand this Please help.
nekit [7.7K]

Answer:

The first one, third one, fourth one, and sixth one.

Step-by-step explanation:

I hope this helps!

6 0
2 years ago
__Na2O + __ H2O → __NaOH
Andrews [41]

Answer:

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Step-by-step explanation:

8 0
3 years ago
Answer to this problem <br> 2³×(15-9)+7
Crazy boy [7]

Answer:

The answer is 55.

Step-by-step explanation:

hope this helps

2³×(15-9)+7

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=120-72+7

=48+7

=55

6 0
2 years ago
Read 2 more answers
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