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Andru [333]
3 years ago
8

NEED HELP ON THIS ASAP WEE WOO WEE WOO

Mathematics
2 answers:
Klio2033 [76]3 years ago
5 0
50 is the answer I think
mojhsa [17]3 years ago
3 0

Answer:

50

Step-by-step explanation:

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(2x + y)2 – (3x – 2y)2 + (x – 4y)(x + 4y<br>11​
Vinvika [58]

Answer:

Step-by-step explanation:

(a+ b)² = a² +  b² + 2ab

(2x + y)² = (2x)² + y² + 2*2x *y

             = 4x²  + y² + 4xy

(a- b)² = a² + b² - 2ab

(3x - 2y)² = (3x)² + (2y)² - 2*3x *2y

              = 9x² + 4y² - 12xy

(a - b)(a +b) = a² - b²

(x - 4y(x + 4y) = x² - (4y)²

                     = x² - 16y²

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

  = 4x²  + y² + 4xy - (9x² + 4y² - 12xy) + x² - 16y²

  = 4x²  + y² + 4xy - 9x² - 4y² + 12xy + x² - 16y²

  = 4x² - 9x² + x²  + y² - 4y² - 16y²+ 4xy + 12xy

 =    -4x² - 19y² + 16xy

8 0
2 years ago
Select all the statements that describe the expression 5 + 2x.
FromTheMoon [43]

It's A that's correct!!!!

8 0
3 years ago
Read 2 more answers
2(x+3)=x-4 help plz<br> I don’t understand it
meriva

So the answer is -10.

<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>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>

6 0
3 years ago
Can anyone help. Greatly appreciate:)
PilotLPTM [1.2K]

Answer:

Area= 12 units squared, Perimeter= 16.12899

Step-by-step explanation:

AC= \sqrt{(4-0)^{2}+ (0+4)^{2}} = 4\sqrt{2}

AB= \sqrt{(0-4)^{2}+ (2-0)^{2} } = 2\sqrt{5}

BC= \sqrt{(0-0)^{2}+ (2+4)^{2} }= 6

So, perimeter= 4\sqrt{2} + 2\sqrt{5} +6= 16.12899

Area= \frac{1}{2}bh\\

        = \frac{1}{2}BC\sqrt{(4-0)^{2}+(0-0)^{2}  }

         = 12 units^{2}

       

6 0
3 years ago
What is 3x + 77 = 4x + 54
loris [4]

Answer:

Simplifying

3x + 77 = 4x + 54

Reorder the terms:

77 + 3x = 4x + 54

Reorder the terms:

77 + 3x = 54 + 4x

Solving

77 + 3x = 54 + 4x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-4x' to each side of the equation.

77 + 3x + -4x = 54 + 4x + -4x

Combine like terms: 3x + -4x = -1x

77 + -1x = 54 + 4x + -4x

Combine like terms: 4x + -4x = 0

77 + -1x = 54 + 0

77 + -1x = 54

Add '-77' to each side of the equation.

77 + -77 + -1x = 54 + -77

Combine like terms: 77 + -77 = 0

0 + -1x = 54 + -77

-1x = 54 + -77

Combine like terms: 54 + -77 = -23

-1x = -23

Divide each side by '-1'.

x = 23

Simplifying

x = 23

Step-by-step explanation:

I hope its helps

8 0
2 years ago
Read 2 more answers
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