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Effectus [21]
2 years ago
13

What is the product of 2x + y and 5x – y + 3?

Mathematics
2 answers:
hoa [83]2 years ago
7 0

Answer:  The required product is 10x^2-y^2+3xy+6x+3y.

Step-by-step explanation:  We are to find the product f the following two algebraic expressions:

E_1=2x+y,\\\\E_2=5x-y+3.

To find the product of the above two expressions, we must multiply each term of the first expression with each term of the second expression.

The multiplication is as follows:

M\\\\=E_1 \times E_2\\\\=(2x+y)\times(5x-y+3)\\\\=10x^2-2xy+6x+5xy-y^2+3y\\\\=10x^2-y^2+3xy+6x+3y.

Thus, the required product is 10x^2-y^2+3xy+6x+3y.

enyata [817]2 years ago
4 0

Answer: 10x^2-y^2+3xy+6x+3y

Step-by-step explanation:

Given expressions are 2x+ y and 5x -y +3

Product of 2x+y and 5x-y+3 is

(2x+y)\times (5x-y+3) = 2x\times (5x-y+3) + y\times (5x-y+3) ( by applying distributive property under multiplication over addition)

⇒(2x+y)\times (5x-y+3) = 10x^2-2xy+6x+5xy-y^2+3y (again by distributive property)

⇒(2x+y)\times (5x-y+3) = 10x^2-y^2+3xy+6x+3y  ( by operating the like terms.)

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Mekhanik [1.2K]

Answer:

2

PLZ MARK BRAINLIEST

Step-by-step explanation:

(-8+4) - (3-9) = (-4) - (-6) = -4 + 6 = 2

7 0
2 years ago
Solve for x.<br><br> 2x-4/10 = 2x/20
Nonamiya [84]
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7 0
3 years ago
Zamira and Courtney share a 16 oz box of cereal. By the end of the week, Zamira has eaten 38 of the box, and Courtney has eaten
12345 [234]

Answer:

12/25 ths of the box is left.

Step-by-step explanation:

I'm assuming you mean 14% and 38%

If so then the first thing you'd do is put 38 and fourteen over 100 such as:

38/100 and 14/100.  You do that because since its a percentage, its the same as the number of that percentage over 100.

Since you now have like terms, you can add them together, in which you add the two numerators (top row), but leaving the denominator (bottom row) the same, and it would give you:

52/100

What you want to do after that is simplify it. Once you simplify it, the simplified version of this is technically still the same as the non-simplified version, just easier to use.

Once you simplify it once, you will get:

26/50 and then if you simplify it again, you'll get 13/25

KEEP IN MIND that this is the amount that HAS BEEN EATEN ALREADY.

After that, you wan to subtract your part from your whole meaning you'd subtract: 25/25 - 13/25

Going back to earlier, you subtract the numerator and leave the denominator the same ONLY because they have like terms(The DENOMINATORS match)

After subtracting, you will get an answer of 12/25ths, which cannot be further simplified either.

Hope this helped!

4 0
2 years ago
A quantity is growing at a constant 3% yearly rate.what would be it's percent growth after 15 years?
scZoUnD [109]
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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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