3 years ago

Factorise (x+y)^2-(4-x)^2

Mathematics

1 answer:

vovikov84 [41]3 years ago

4 0

Answer:

by using the identity a square - b square = (a+b)*(a-b)

a = x+y

b=4-x

= (x+y + 4-x)(x+y - 4-x)

y+4 * x+y -4+x

y+4*2x+y-4

2xy+y square -4y + yx + 4x + 4y - 16 +4x

3xy +y square + 8x -16

Step-by-step explanation:

You might be interested in

5-78 what does that give me

Sholpan [36]

5 -78 is equal to (-73)

4 0

2 years ago

Read 2 more answers

the measure of an angle is five degrees greater than six times its supplement. what is the measure of the larger angle?

Law Incorporation [45]

Let the measure of the smaller angle be x, then the larger angle is 5 + 6x and
x + 5 + 6x = 180
7x + 5 = 180
7x = 180 - 5 = 175
x = 175/7 = 25

The larger angle is 5 + 6(25) = 5 + 150 = 155 degrees.

8 0

3 years ago

Find the value of X. Write your answer in simplest form.

natita [175]

Answer:

45×7

Step-by-step explanation:

3 0

3 years ago

I dont know the x of 30-2x=22

zloy xaker [14]

Answer:

Step-by-step explanation:

30-22=2x

8=2x

8/2=x

3 0

2 years ago

Read 2 more answers

Luigi is an urban planner. As an independent contractor, he charges a $140 fee plus $25 per hour for each contract with the city

IrinaK [193]

25x+140=y. 25(10)+140=390.

5 0

3 years ago

Read 2 more answers

Factorise (x+y)^2-(4-x)^2​

Factorise (x+y)^2-(4-x)^2