2 years ago

Expand 3( q + 2 ) 3(q + 2) =

Mathematics

1 answer:

adoni [48]2 years ago

6 0

Answer:

9q²+36+36q

Step-by-step explanation:

3( q + 2 ) *3(q + 2) =9*((q+2)²)=9*(q²+4+4q)=9q²+36+36q

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Factor the perfect-square trinomial in y = (x2 + 2x + 1) − 1− 1.<br> y = (x + <br> )2 − 1 −1

dolphi86 [110]

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$y = ( {x}^{2} + 2x + 1) - 1$

$y = ({x + 1})^{2} - 1$

$y = ({x + 1})^{2} - ({1})^{2}$

We're done now but I have something to tell...

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Hint :

${a}^{2} - {b}^{2} = (a + b)(a - b)$

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$y = ( \: (x + 1) + 1)( \: (x + 1) - 1) \\$

$y = (x + 2)(x)$

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4 0

3 years ago

Read 2 more answers

What is the solution to the system of equations? y = –3x – 2 5x + 2y = 15 (–40, 19) (–19, 55) (19, –40) (55, –19)

kobusy [5.1K]

Step-by-step Answer:

What is the solution to the system of equations?

y = –3x – 2 ..............(1)

5x + 2y = 15..............(2)

Substitute (1) in (2) to give

5x + 2(-3x-2) = 15

5x-6x-4 = 15

-x-4=15

solve for x:

-4-15 = x

x=-19

Now substitute x=-19 into equation (1)

y = -3x-2 = 57-2 = 55

Therefore the solution is (-19, 55)

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2 years ago

of the 125 guests invited to a wedding ,104 attended the wedding .What percent of the invited guests attended the wedding

pashok25 [27]

$\frac{104}{125} =\frac{104\times8}{125\times8}=\frac{832}{1000}$

832/1000 = 0.832 = 0.832 * 100% = 83.2%

83.2% of the invited guests attended the wedding.

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3 years ago

John and Liz are sharing a large pizza. John ate 2/3 of the pizza, and Liz ate 1/4 of the pizza. How much of the pizza is left?

Mkey [24]

Add what they ate
2/3 + 1/4 =
11/12
Then subtract that from the whole pizza
12/12 - 11/12 =
1/12
1/12 of the pizza is left

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3 years ago

Suppose Country A has a high average wage level and a high level of output per person, while Country B has a low average wage le

kotykmax [81]

Answer:

Both Country A and B can benefit.

Step-by-step explanation:

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3 years ago