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bezimeni [28]
3 years ago
7

FOR 20 POINTS: what expression is represented in the model shown below?

Mathematics
1 answer:
dybincka [34]3 years ago
4 0
I will give you an amazing answer if you take a better pic but right now I cant see anything but the boxes with xs on them
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(a+2b)² ?????????????????????<br>​
lbvjy [14]

Answer:

a² + 4ab + 4b²

Step-by-step explanation:

Given

(a + 2b)²

= (a + 2b)(a + 2b)

Each term in the second factor is multiplied by each term in the first factor, that is

a(a + 2b) + 2b(a + 2b) ← distribute both parenthesis

= a² + 2ab + 2ab + 4b² ← collect like terms

= a² + 4ab + 4b²

3 0
3 years ago
Simplify the expression. -3m + 2n + 9m
ycow [4]

Answer:

Step-by-step explanation:9m -3m +2n = 6m+2n

5 0
3 years ago
Read 2 more answers
Hey can you please help me posted picture of question
Naddika [18.5K]
The correct answer is option D

The solution is shown below:

x^{2} +16 \\  \\ &#10;= x^{2} +(4)^{2} \\  \\ &#10;= x^{2} -(-1)(4)^{2}   \\  \\ &#10;= x^{2} -i^{2} (4)^{2} \\  \\ &#10;= x^{2} -(4i)^{2} \\  \\ &#10;=(x+4i)(x-4i)&#10;
6 0
3 years ago
Evaluate the following expression. 6^-1
Ugo [173]
Do you mean 1/6 as the evaluation?
8 0
3 years ago
Read 2 more answers
Approximate the solution to the system of equations.
Ann [662]

Answer:

a) at x=0.5  y=2  and at x=1  y=2 this similarity in values shows that the solution for x is between 0.5 and 1

c) The x  solution will be between  x=0.0 and x=0.7 .

There is a similarity in values of y at x=0.6, y=2.4 and at x=0.7 , y=2.4

d) For x= (0.6+0.7)/2 = 1.3/2 =0.65

   For y= (2.4+2.3)/2 =4.7/2=2.35

  Approximate solution is (0.65, 2.35)

8 0
3 years ago
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