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andriy [413]
3 years ago
12

What substitution should be used to rewrite 4x12 – 5x6 – 14 = 0 as a quadratic equation? u = x2 u = x3      u = x6      u = x12

Mathematics
2 answers:
VLD [36.1K]3 years ago
8 0

Answer: u=x^6

Explanation:

A quadratic equation is an equation written in the form

au^2 + bu + c=0 (1)

where a,b,c are coefficients and where u is the variable.

Our original equation is:

4x^{12} - 5x^6 -14=0

If we make the substitution u=x^6, we obtain

4u^2 -5u-14 =0

Which corresponds to eq.(1), with coefficients a=4, b=-5, c=-14.

Arada [10]3 years ago
5 0
Sent a picture of the solution to the problem (s).

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3 years ago
To graph y = -cosx, _____.
Lady bird [3.3K]

Answer:

reflect y = cos x over the x-axis

Step-by-step explanation:

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y = -f(x)

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5 0
3 years ago
2−2n=3n+17 <br> what IS THE answer help
Stolb23 [73]
First, let's identify the like terms. 
2 and 17
2n and 3n

Next, you would need to combine them. Ex: Add 2n to both sides, and subtract 17 from both sides. 
2 - 2n = 3n + 17
2 = 5n + 17
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Now, all you would need to do is isolate the n. To do this, you would divide both sides by 5. 
-15 = 5n
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n = -3

The solution would be -3. 

I hope this helps!
6 0
3 years ago
Read 2 more answers
What is the solution to this equation?<br><br> -2(2 - 4m) = 6(m + 3)
serg [7]

Answer:

m = 11

Step-by-step explanation:

-2(2 - 4m) = 6(m + 3)

Divide both sides by -2.

2 - 4m = -3(m + 3)

Distribute -3 on the left side.

2 - 4m = -3m - 9

Add 3m to both sides.

2 - m = -9

Subtract 2 from both sides.

-m = -11

Divide both sides by -1.

m = 11

6 0
3 years ago
What is cos(3pi)?<br> 1<br> 0<br> -1<br> -2
Dafna1 [17]
C: -1 is the answer
5 0
3 years ago
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