3 years ago

(x^2+xy-3y^2) - (4x^2-xy+y^2)

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

4 0

Answer:

-3x^2+2xy-4y^2

Step-by-step explanation:

(x^2+xy-3y^2)-(4x^2-xy+y^2)

x^2-4x^2+xy-(-xy)-3y^2-y^2

-3x^2+xy+xy-4y^2

-3x^2+2xy-4y^2

You might be interested in

What is the area of the circle? Round to the nearest whole number, if necessary

iVinArrow [24]

Answer:616 cm²

Step-by-step explanation:

7 0

2 years ago

The variables x and y are inversely proportional, and y = 2 when x = 3. What is the value of y when x = 9?

givi [52]

$If\ x\ and\ y\ are\ inversely\ proportional\ then\ xy\ is\ constans.\\\\9y=2\times 3\\\\9y=6\ \ \ \ \ \ /:9\\\\y=\frac{6}{9}\\\\y=\frac{2}{3}$

7 0

4 years ago

Read 2 more answers

HELP ME PLEASE HELP HELP I NEED HELP I NEED TO TURN THIS US TOMMOROW

Readme [11.4K]

Answer:

Step-by-step explanation:

1. X=2

2. y = 8

4. p= -3

5. z= 18

6. w=35

7 0

4 years ago

there are 239 people in the first six rows of the movie theater if the same number of people are in the next six rows about how

bija089 [108]

Answer:

478 people

Step-by-step explanation:

All you need to do for this problem is simply multiply 239 by 2. If the first 6 rows are 239 people, and so are the next 6, that's all you need to do.

239*2=478

8 0

3 years ago

Stephanie is making 1 1/2 batches of cookies using 2 3/4 cup sugar. How much sugar total?()

storchak [24]

Answer:

33/8 or 4 1/8 simplified.

6 0

3 years ago