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alexgriva [62]
3 years ago
7

HELPPPPP!!!! MEEE!!! PLEASE!!! ASAPPP!!!!

Mathematics
1 answer:
mario62 [17]3 years ago
6 0
Umm, what grade are you in . i’ll see if i can help
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Expand.<br> If necessary, combine like terms.<br> (3 + 4x) (3 - 4x)
shepuryov [24]
  • (3 + 4x) (3 - 4x)

We know the algebraic identity: (a - b)(a + b) = a^2 + b^2. Therefore, we should square 3 and 4x.

  • = (3)^2 - (4x)^2
  • 9 - 16x^2

<u>Answer</u><u>:</u>

<u>9</u><u> </u><u>-</u><u> </u><u>1</u><u>6</u><u>x</u><u>^</u><u>2</u>

Hope you could understand.

If you have any query, feel free to ask

5 0
2 years ago
I am very confused, if somebody could help me it would mean alot. :)
Yuliya22 [10]

Answer:

3n+7=16

Step-by-step explanation:

3(3)+7=16

9+7=16

16=16

The second one is wrong(x=18)

8 0
3 years ago
The variable z varies jointly with x and y and inversely with v and w. Using the constant of variation,k, from the last problem,
antiseptic1488 [7]

Answer:

Step-by-step explanation:

5 0
3 years ago
An artist wants to frame a square painting with an area of 400 square inches . she wants
Artemon [7]
(a) x^{2} = 400
(b) \sqrt{x^2} = \sqrt{400}
x=20,-20
(c) Only the positive solution makes sense because you cannot have a negative side length.
(d) Since one side of the painting is 20 inches, all four sides together will be 20*4 = 80 inches
6 0
3 years ago
Write log(x + 2) = 3 in exponential form.<br> Huh
ahrayia [7]
(x + 2) = 3
-2 -2
0 1
x = 1
5 0
2 years ago
Read 2 more answers
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