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ruslelena [56]
3 years ago
11

Factor the expression completely: x³y - 4xy

Mathematics
2 answers:
Phoenix [80]3 years ago
6 0
Factor out the gcf
xy(x^2-4)

The inner binomial can be factored using the difference of squares.
xy(x+2)(x-2)

Final answer: xy(x+2)(x-2)
levacccp [35]3 years ago
6 0
See attached picture for the answer:

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What is the slope of the line passing through (0, 5) and (-12, 2) ? Enter your answer in the box.
Vsevolod [243]

Answer: A negative slope

Step-by-step explanation:

3 0
3 years ago
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The work of a student to solve the equation 3(3x − 4) = 8 + 2x + 5 is shown below: Step 1. 3(3x − 4) = 8 + 2x + 5 Step 2. 6x − 7
Mamont248 [21]

Answer:

  (a)  Step 2. 9x -12 = 13 +2x

Step-by-step explanation:

The distributive property says a factor outside parentheses multiplies each term inside parentheses. It is an error to do addition of the factor, or to miss multiplying a term.

In Step 2 of this "solution", the factor of 3 is erroneously <em>added</em> to each coefficent inside parentheses. It should be <em>multiplied</em>.

Correct Step 2: 9x -12 = 13 +2x

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The rest of the solution should be ...

  Step 3: 9x -2x = 13 +12

  Step 4: 7x = 25

  Step 5: x = 25/7

___

<em>Check</em>

  3(3(25/7) -4) = 8 + 2(25/7) +5

  3((75 -28)/7) = 13 +50/7

  141/7 = 141/7 . . . . . answer checks OK

8 0
2 years ago
Please help me ASAP!!
dem82 [27]

Answer:

n = 6\sqrt{3}

Step-by-step explanation:

you can create this proportion:

18/n = n/6

cross-multiply:

n² = 108

n = \sqrt{108}

\sqrt{108} = \sqrt{4}·\sqrt{9}·\sqrt{3} = 2·3·\sqrt{3} or 6\sqrt{3}

7 0
3 years ago
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Natalija [7]

Answer:

V= 8

x=4.5

BCF =48 CFE=132

V=352.8 =8.4x8.4x5

For the volume one i cant read the number but if the bottom number is 8 then V=803.84

if its 6 then v = 452.16

Step-by-step explanation:

v= 2x2x2 v = 8

x is 11x-9=7x+9 | 4x=18 | x=4.5

15x=180 x=12 | CFE = 11x12=132 | BCF = 4x12=48

4 0
3 years ago
9. Earth turns on its axis once every 24 h. How many hours does earth take to complete 2 1/4 turns
Dima020 [189]

Answer:

54

Step-by-step explanation:

24* 2.25= 54

(.25 is 1/4 in decimal form)

7 0
2 years ago
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