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neonofarm [45]
3 years ago
5

Someone please help me with this question I need it ASAP

Mathematics
1 answer:
ZanzabumX [31]3 years ago
6 0

Your question has been heard loud and clear.

First one (x+2i)(x-2i) = x^2+4

Second one (x-2+2i)(x-2-2i) = x^2-4x+8

Third one (x+1+i)(x+1-i) = x^2+2x+2

Thank you

Edit: Sorry for taking 15 minutes I was calculating lol

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(8m-3n)^2 - (4m+3n)^2​
natulia [17]

Answer:

48m^2-72mn

Step-by-step explanation:

We need to solve (8m-3n)^2 - (4m+3n)^2

We know that,

(a+b)^2=a^2+b^2+2ab\\\\(a-b)^2=a^2+b^2-2ab

Using the above formula,

(8m-3n)^2 - (4m+3n)^2=(8m)^2+(3n)^2-2(8m)(3n)-[(4m)^2+(3n)^2+2(4m)(3n)]\\\\=64m^2+9n^2-48mn-(16m^2+9n^2+24mn)\\\\=64m^2+9n^2-48mn-16m^2-9n^2-24mn\\\\=48m^2-48mn-24mn\\\\=48m^2-72mn

So, the final answer is 48m^2-72mn.

4 0
2 years ago
Wich one is the solution???: 4(2x-1)=-3x+32<br><br><br>i dont understand this thing....
sweet-ann [11.9K]
First let’s multiply. 8x-4=-3x+32. Start collecting like terms on different sides. 8x+3x=32+4. 11x=36. x=36/11. x=3.27.
5 0
3 years ago
Read 2 more answers
NEED HELP ASAP !! PLEASE !!!
algol [13]

Answer:

The domain for A is 0, 1, 2, 3 and the range is 0, 5, 10, 15

and the domain for B is 2, 2, 4, 4 and the range is 4, 3, 2, 1

Only A is a function because for the same input value in B, there is two different output values which is not possible.

Step-by-step explanation:

I just wanna let you know so you don't waste any more points for us, but the domain is the x-values/ input/ stuff on the left of a given point. The range is the y-values, the output, and the stuff on the right side of a given point. So on (1, 7) for example, the 1 would be the domain number and the 7 would be the range number.

The y-axis values are the output/range and the x-axis values are the input/domain.

Hope this helps bro

6 0
2 years ago
I will give brainilist to the first person who wants to do my delta math
pochemuha
What's ur username lol
5 0
2 years ago
Need the answer please thank you!
adell [148]

Answer:

Step-by-step explanation:

The total number of marbles is 17

Red

6/17 is the answer. As a decimal, that's .3529

Green

11/17 is the answer. As a decimal that's .6471

Purple

Since there are no purples, the answer is 0

Red or Green

This one is a little tricky.

What else is there besides red or green? Nothing. You have to choose 1 or the other.

The answer is 1.

5 0
2 years ago
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