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timofeeve [1]
3 years ago
5

Expand (2x+y)(2x_y)​

Mathematics
1 answer:
OLga [1]3 years ago
7 0

Answer:

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

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Solve for y<br> 8x + y = 32
oksian1 [2.3K]

Answer:

Subtract 8x8x from both sides of the equation.

y=32−8x

8 0
3 years ago
Find the value of Q in the following system so that the solution to the system
lisabon 2012 [21]

Answer:

<h2>Q = -6</h2>

Step-by-step explanation:

If the solution of the system of equations is {(x, y): x - y = 4} - infinitely many solutions, then this system is consistent and dependent.

x - 3y = 4            <em>multiply both sides by 2</em>

2x - 6y = 8

Therefore Q = -6

8 0
3 years ago
When you solve using the quadratic formula and you get to
kvasek [131]

Answer:

\boxed{if \: b=  - 2 :  {b}^{2}  =  { (- 2)}^{2}  = 4}

8 0
2 years ago
PLEASE HELP❗️❗️
Alexandra [31]

Answer:

A.irrational

Step-by-step explanation:

because 9 can be square to 3 but 11 cant be squared at all.

4 0
3 years ago
I need help on this...
maria [59]
7 . 112
8 . 246

for number 7 , you multiply 8 by 16 to get 128 then subtract both windows so you get 112

for number 8 , you find the area of the rectangle which is 10x26 = 260 then add the triangles area which is 130 and you get 390 then subtract the 16 window and 128 door
6 0
3 years ago
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