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lara31 [8.8K]
3 years ago
13

This is confusing (2x+y)^2−(x−2y)^2

Mathematics
2 answers:
belka [17]3 years ago
8 0

<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em>

<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em><em>⤴</em><em>⤴</em>

Iteru [2.4K]3 years ago
5 0

Answer:

{(2x + y)}^{2}  -  {(x - 2y)}^{2}

<  {(x + y)}^{2}  =  {x}^{2}  + 2xy +  {y}^{2}  >

<  {(x - y)}^{2}  =  {x}^{2}  - 2xy +  {y}^{2}  >

{(2x)}^{2}  + 2(2x)(y) +  {(y)}^{2}  -  {(x)}^{2}  - 2(x)(2y) +  {(2y)}^{2}

{4x}^{2}  + 4xy +  {y}^{2}  -  {x}^{2}  - 4xy +  {4y}^{2}

{4x}^{2}   -  {x}^{2}  +  {4y}^{2}  +  {y}^{2}

= {3x}^{2}  +  {5y}^{2}

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Three candy bars cost $3.81 at this rate how much does 7 candy bars cost
Charra [1.4K]

Answer:

3.81 ÷3 = 1.27

1 27×7 = 8.89

7 candy bars cost $8.89

4 0
2 years ago
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What is y/3 + 6 = 9?​
VLD [36.1K]

y = 9 because 9 over 3 simplified is 3 and 3 plus 6 equals 9

5 0
3 years ago
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What is the equation of a line that passes through the point (9, −3) and is parallel to the line whose equation is 2x−3y=6 ?
amm1812
1. Find the equation of a line passing through the point (4, –7) parallel to the line 4x + 6y = 9. 2. Find the equation of a line passing through the point (–3, 8) perpendicular to the line 2x – 7y = –11. 3. Find the equation of a line passing through the point (5, 4) perpendicular to the line –4x – 3y = 6. 4. Find the equation of a line passing through the point (–2, –1) perpendicular to the line 5x + 6y = –6. 5. Find the equation of a line passing through the point (–7, 2) parallel to the line –4x + 10y = –5. 6. Find the equation of a line passing through the point (8, –9) perpendicular to the line 3x + 8y = 4. 
6 0
3 years ago
Please help Please help please help please help please help please help please help me help yourself to some please help please
dmitriy555 [2]
The answer is letter A
4 0
3 years ago
How many solutions does this equation have? 6x − 6/ 3 = 2x − 2 A) no solution B) exactly one solution C) exactly two solutions D
zmey [24]

Answer:

B

Step-by-step explanation:

6x - 6/3 = 2x - 2

6x - 2 = 2x - 2

6x - 2 + 2 = 2x - 2 + 2

6x = 2x

6x - 2x = 0

4x = 0

Divide both sides by 4

4x/4 = 0/4

x = 0

The equation has exactly one solution.

Reasons are that it is an algebraic linear equation where the unknown variable, x has highest power as 1.

Also after solving for x, we see that we got only one value or solution for x

3 0
3 years ago
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