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andriy [413]
2 years ago
15

HELPPPP (x-y)^3-(y-x)^2

Mathematics
1 answer:
Nat2105 [25]2 years ago
8 0

Answer:

(x-y)(x-y)(x-y)= x²-yx+x²-yx-yx+y²-yx+y²

2x²-4yx+2y²

(y-x)(y-x)= y²-yx-yx+x²

y²-2yx+x²

-(y²-2yx+x²) = -y²+2yx-x²

2x²-4yx+2y²-y²+2yx-x²= x²-2yx+y²

or

(x−y−1)(x−y)² ≡ x³−x²+3xy²+2xy−y³−y²−3yx³

You might be interested in
what is the equation of a line that passes through the point (0,8) and is parallel to a line with a slope of 4/5?
joja [24]

Answer: The answer is y = 4/5x + 8.

Step-by-step explanation:

There is good reasoning behind why this is the answer. First, if you recall, parallel lines must have the same slope or they will at some point meet. With this information, you can pull from the given material that the slope for the equation you are trying to gather is 4/5.

Then, you can use the given point to find the y-intercept because the x-coordinate is 0 (directly on the y-axis) and your y-coordinate is 8. Your y-intercept is placed as a positive or negative value at the end of the equation (if in slope-intercept form), and because the 8 in the ordered pair is positive, you just need to add +8 to your equation.

With this information, you can conclude that the equation is y = 4/5x + 8.

7 0
3 years ago
Read 2 more answers
Please help with this question, I need to make sure I'm right. Thanks
Lina20 [59]

an=4n+1

Sum of first 30 terms

a1+a2+.................a30

 Sn=(a1+an)*n/2

a1-----------first terms

an=---------last term-----a30

n= number of terms-----30

 calculation of a1

a1=4n+1=4*1+1=5

 calculation of an

a30=4*30+1=121

 S30=(a1+a30)*30/2

S30=(5+121)*30/2=1890

<span>The sum of first 30 terms is 1890</span>


4 0
3 years ago
Find the exact length of the third side 2 7​
GenaCL600 [577]

Answer:

its 14

Step-by-step explanation: i assumed 2 7 meant multiply sorry if wrong

3 0
3 years ago
Borris chooses 3 different numbers The sum of the numbers add up to 36 One of the numbers is a cubed number The other two number
umka2103 [35]

Answer:

4, 5 and 27

Step-by-step explanation:

multiple of 20

1, 2, 4, 5, 10, 20

3^(3)= 27

5+ 4 + 27 =36

6 0
3 years ago
-2.5d ≥ 30<br> 10-x ≤35<br> Please help thanks!
Natasha2012 [34]

Answer:

1) d ≤ -12

2) x ≥ -25

Step-by-step explanation:

-2.5d ≥ 30

2.5d ≤ -30

d ≤ -12

10 - x ≤ 35

-x ≤ 25

x ≥ -25

4 0
3 years ago
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