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Semmy [17]
3 years ago
11

Expand (2x + 2)(x + 4

Mathematics
2 answers:
sasho [114]3 years ago
7 0

Answer:

2x^2+10x+8

Step-by-step explanation:

(2x+2)(x+4)

=(2x+2)(x+4)

=(2x)(x)+(2x)(4)+(2)(x)+(2)(4)

=2x^2+8x+2x+8

=2x^2+10x+8

ArbitrLikvidat [17]3 years ago
7 0

Answer:

Work shown below!

Step-by-step explanation:

(2x+2)(x+4)=2x^{2} +8x+2x+8=2x^{2} +10x+8

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The difference of two numbers is 44 1 /2 . If the smaller of the two numbers increases 7 times then the difference will be 10 3/
pshichka [43]
Let’s call the numbers x and y. Let’s also say that x is the smaller of the two. Since their difference (the answer you get when you subtract is 44 and a half) we know that y-x=44.5

Next we are told that if the smaller increases 7 times (that means 7x) their difference would be 10 3/14. Let’s write that as a fraction. It is 14x10+3 over 14. That is 143/14.

So this means y-7x=143/14.

We have two equations and two unknowns (a system of equations). We write one over the other and subtract them to get:

y-x=44.5
y-7x=143/14

Subtracting yields:
(y-y)+(-x - - 7x) = 44.5 - 143/14
6x = (89/2) - (143/14)
6x= 623/14 - 143/14
6x=480/14
X= (480/14)(1/6)
X=80/14
x= 40/7 = 5 5/7

Since y-x=89/2
We get y - 40/7 = 89/2
Y = 40/7 + 89/2
Y = 80/14 + 623/14
Y = 703/14 = 50 3/14
8 0
4 years ago
5. Use the vertical method to multiply two trinomials.
Gekata [30.6K]

Answer:

20x^4 - 13x^3 + 8x^2- x + 6

Step-by-step explanation:

box method :)

5 0
2 years ago
Question 2
FrozenT [24]

Answer:

y=-3x-1

Step-by-step explanation:

<u>Slope-intercept format:</u>

y = mx+b

m = slope

  • In this case, the slope is -3

b = y-intercept

  • In this case, the y-intercept is -1

Now we plug it in to get the equation:

y=-3x-1

I hope this helped!

Sincerely,

Rekifromsk8theinfinity

:D

3 0
3 years ago
Which of the following is a multiple of 4?
bagirrra123 [75]
The answer is A. if you divide 620 by four you would get 155 and the rest would have a decimal
4 0
4 years ago
Read 2 more answers
How do you answer rhis
Igoryamba
You answer this problem bye cost i already got my answer though thanks for trying...

5 0
3 years ago
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