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aniked [119]
2 years ago
14

Add expression -3x^2+ 2xy+ 4y^2, 11y^2+8x^2

Mathematics
2 answers:
ycow [4]2 years ago
5 0

<u>Solution:</u>

  • -3x^2+ 2xy+ 4y^2 + 11y^2+8x^2
  • => (-3x^2 + 8x^2) + (4y^2 + 11y^2) + 2xy
  • => (5x^2) + (15y^2) + 2xy
  • => 5x^2 + 15y^2 + 2xy

The simplified expression is 5x^2 + 15y^2 + 2xy.

slega [8]2 years ago
4 0

Answer:

Socratic app

Step-by-step explanation:

it will help you

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Jennifer spent $42 on a magazine and 7 candy bars. The magazine cost $7, then how much was each candy bar​
Genrish500 [490]
$5. You subtract the $7 from the $42 since that was the magazine then you divide that(35) by 7 since that is the amount of candy bars that were bought. That’ll give you the answer of $5 for each candy bar.
3 0
3 years ago
Which number should each side of the equation 4/5x=8 be multiplied by to produce the equivalent equation of x = 10?
madreJ [45]
C bcz i had l
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6 0
4 years ago
Please simplify n-2/n^2-4
Doss [256]

Answer:

\frac{1}{ {n}   +   {2}}

Step-by-step explanation:

\frac{n - 2}{ {n}^{2}  - 4}  \\  \\  =  \frac{n - 2}{ {n}^{2}  -  {2}^{2} } \\  \\  = \frac{n - 2}{ ({n}   +   {2})({n}  -  {2})} \\  \\  =  \frac{1}{ {n}   +   {2}} \\

8 0
4 years ago
Express the following numbers as a product of their prime factors <br> 24<br> Please show working
Studentka2010 [4]

Answer:

2 x 2 x 2 x 3

Step-by-step explanation:

Find two numbers that multiply together to form 24:

2 x 12 = 24

Find two numbers that multiply together to form 12, a factor of 24. Replace 12 with these numbers:

2 x (2 x 6) = 2 x 12 = 24

Find two numbers that multiply together to form 6, a factor of 12. Replace 6 with these numbers:

2 x (2 x (2 x 3)) = 2 x (2x6) = 2 x 12 = 24

Two and three cannot be factored any further, therefore the prime factors of 24 are 2, 2, 2, and 3.

8 0
3 years ago
Write a real world problem that could be solved by using the equation <img src="https://tex.z-dn.net/?f=3x-25%3D125" id="TexForm
forsale [732]

Answer:

x=50

See below for word problem.

Step-by-step explanation:

While shopping, you spend $125 before tax. You buy 3 dresses at the same price each and receive a $25 discount. How much is the price of each dress?

3x-25=125

3x=125+25

3x=150

x=50

8 0
4 years ago
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