3 years ago

3x(x+5y)+2y(7x-y)+4(x^2+2y)

Mathematics

1 answer:

Helga [31]3 years ago

6 0

Answer:

7x^2 + 29xy -2y^2 + 8y

Step-by-step explanation:

3x(x+5y)+2y(7x-y)+4(x^2+2y)

Break all the brackets and you would hot:

= 3x*x + 3x*5y + 2y*7x - 2y*y + 4*x^2 + 4*2y

= 3x^2 + 15xy + 14xy -2y^2 + 4x^2 + 8y

= 3x^2 + 4x^2 +15xy + 14xy - 2y^2 + 8y

= 7x^2 + 29xy -2y^2 + 8y

Hope this help you :3

You might be interested in

Bobby is 12 years old. His age is nine

KatRina [158]

Answer:

65 because 12 plus 9 is 21 then 3 times 21 is 65

4 0

2 years ago

Tessa bought stock in a restaurant for $173.00. Her stock is now worth $242.20. What is the percentage increase of the value of

frozen [14]

Answer:

The percentage increase in Tessa's stock is 40%

Step-by-step explanation:

Given that:

Previous worth = $173

Worth now = $242.20

We have to find percentage increase which can be known by subtracting previous worth from present worth and multiplying it by 100:

Percentage increase = $242.20 - $173 = $69.2

Percentage increase = $69.2/173 *100

Percentage increase = 40%

i hope it will help you!

7 0

3 years ago

If the actor is to the audience’s right the actor is _______.

kati45 [8]

I think the answer is stage left because if you flip your view point, you'll get stage left.
Hopefully that helped! :)

7 0

3 years ago

PLEASE HELP FAST FAST FAST<br> Use the interactive number line to graph the inequality -1 ≥ x.

pochemuha

Put an open circle pointing to the left on -1

8 0

3 years ago

Read 3 more answers

find 44% of 8.79. user: find 8% of 2.36. user: darren teaches a class of 25 students. he assigns homework 3 times a week, and ea

Andrews [41]

44% of 8.79 =
0.44 (8.79) = 3.87 (thats rounded)

8% of 2.36 =
0.08 (2.36) = 0.19 (rounded)

25 students, homework 3 times per week, 12 problems each assignment
3(12) = 36 problems per student...36(25) = 900 problems for 25 students.
ur answer is 900

7 0

3 years ago