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Vinil7 [7]
3 years ago
8

3(x+2)^2+7 in standard form

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
4 0

Answer:-2x^2+3x-7=0

Step-by-step explanation:

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Factorise 3(2x+3y)² - 8x - 12y​
Travka [436]

Factorise 3(2x + 3y)^2 - 8x - 12y

First, we FOIL it.

FOIL: First, Outside, Inside, and Last

(2x + 3y)(2x + 3y)

First: 2x*2x = 4x^2

Outside: 2x*3y = 6xy

Inside: 3y*2x = 6xy

Last: 3y*3y = 9y^2

Before, we move on, we have to combine any like terms.

6xy + 6xy = 12xy

Then, when we've finished FOILing it, we place a pair of parentheses around these.

3 (9y^2 + 4x^2 + 12xy) -8x - 12y

Now, we can distribute the 3.

3 * 9y^2 = 27y^2

3 * 4x^2 = 12x^2

3 * 12xy = 36xy

Lastly, we combine any like terms if there are any.

Expression: 27y^2 + 12^2 + 36xy - 8x - 12y

None of these all have a greatest common factor for the whole set.

So, therefore, the factorised form of 3(2x + 3y)^2 - 8x - 12y is:

27y^2 + 12x^2 + 36xy - 8x - 12y

3 0
3 years ago
Read 2 more answers
What two numbers can equal to 70 when added in 34 when subtracted.
lina2011 [118]

Answer:

18 and 52

Step-by-step explanation:

x + Y = 70

X - Y= 34 find the value of X interms of Y to find the answer:

X - Y= 34

X = 34 +Y

x + Y = 70

(34 + Y ) + Y = 70

34 + Y +Y = 70

2Y =70-34

2Y/2=36/2

Y = 18

x + 18 = 70

x=70 - 18

x= 52

check:

18 + 52= 70

52 - 18= 34

3 0
3 years ago
What is 7.25 / 1,000
Serggg [28]

Answer:.00725


Step-by-step explanation:


8 0
4 years ago
Masha had 200 scoops of ice cream and Liz had 180 scoops. What is the ratio of the ice cream they have?
s2008m [1.1K]
It depends. If its the ratio of Masha to Liz, it is 10:9. If it is Liz to Masha, its 9:10. If it is Masha to the total, it is 10:19. If it is Liz to the total, it is 9:19. Hope this helps!
5 0
3 years ago
Read 2 more answers
The value of a piece of equipment is decreasing at a rate of 7,5% yearly. If the equipment
SCORPION-xisa [38]

Answer:

y=930 x 075^x

Step-by-step explanation:

y is the price after the amount of years x being plugged into the equation. 930 is what you started with. 7.5 is what is being decreased so divide that by 100 and you get 0.075 plug in the amount of years into x and you have your equation

4 0
3 years ago
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