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kogti [31]
3 years ago
14

Factor the expression 8x3y − 8x2y − 30xy. 8x3y − 8x2y − 30xy

Mathematics
1 answer:
Lelu [443]3 years ago
6 0

Answer:

  2xy(2x +3)(2x -5)

Step-by-step explanation:

The greatest common factor of the coefficients 8 and 30 is 2. All of the variable expressions have a common factor of xy. We can factor those out to get ...

  = (2xy)(4x^2 -4x -15)

Now, we want to find factors of the product (4)(-15) that have a sum of -4 (the x coefficient). Those factors are 6 and -10. Then we can rewrite the quadratic factor as ...

  4x^2 +6x -10x -15

and factor by pairs:

  = 2x(2x +3) -5(2x +3) = (2x -5)(2x +3)

The complete factorization is then ...

  = 2xy(2x +3)(2x -5)

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?simplified the expression
larisa [96]
The first two negatives cancel out and you're left with positive 4. Now go inside the square root and do the exponent. -4*-4 = 16. Then do the -4*3*1 = -12. Do 16-12 = 4. now the square root of 4 = 2. at the dominator is 2*3 = 6. right now they problem should look like 4+- 2/ 6. from there you split the problem in two. so you have 4+2/6   &     4-2/6     then you solve both problems.
           6/6               2/6
             1                  1/3
1 & 1/3 are your answers. I hope this helped!
5 0
3 years ago
Factor completely. x2−11x+24
Serjik [45]

Step-by-step explanation:

x2-8x-3x+24=0

x(x-8) 3(x+8)

(x-8)(x+8)

x-8=0 or x+8=0

x=8. x= -8

6 0
2 years ago
If your barn is 100 feet by 50 feet, how many square feet do you have in your barn? Type in your answer.
zavuch27 [327]

Answer: 5,000 square feet

Step-by-step explanation:

50 feet multiplying by 100 feet equal to 5,000 sq ft.

7 0
2 years ago
Read 2 more answers
Help please...................
lys-0071 [83]

Answer:

ok so what im seeing is a mickey mouse on the paper, the answer to all question has to mikey mouse

Step-by-step explanation:

mickey mouse is on the paper like its giving you the answer? why would you need help ITS SO SIMPLE

8 0
2 years ago
WILL GIVE BRAINLIST AS SOON AS I CAN is this 32, maybe? i have no idea.​
Feliz [49]

Answer:

y ≈ 32.0°

Step-by-step explanation:

Since the triangle is right use the sine ratio to find y

sin y = \frac{opposite}{hypotenuse} = \frac{9}{17}, thus

y = sin^{-1} ( \frac{9}{17} ) ≈ 32.0° ( nearest tenth )

8 0
3 years ago
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