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galben [10]
3 years ago
8

Factor the polynomial , please show how you got answers

Mathematics
1 answer:
enyata [817]3 years ago
3 0
147x² - 84x + 12
3(49x²) - 3(28x) + 3(4)
3(49x² - 28x + 4)
3(49x² - 14x - 14x + 4)
3(7x(7x) - 7x(2) - 2(7x) - 2(-2))
3(7x(7x - 2) - 2(7x - 2))
3(7x - 2)(7x - 2)
3(7x - 2)²

(x - 10)² - 36
((x - 10)(x - 10)) - 36
(x(x - 10) - 10(x - 10)) - 36
(x(x) - x(10) - 10(x) + 10(10)) - 36
(x² - 10x - 10x + 100) - 36
(x² - 20x + 100) - 36
x² - 20x + 100 - 36
x² - 20x + 64
x² - 16x - 4x + 64
x(x) - x(16) - 4(x) - 4(-16)
x(x - 16) - 4(x - 16)
(x - 4)(x - 16)

<u />21y³ - 6y² + 15y
3y(7y²) - 3y(2y) + 3y(5)
3y(7y² - 2y + 5)
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absolutely no idea if this is right but i put the first one

Step-by-step explanation:

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3 years ago
D) A shopkeeper bought two radios for Rs 6,000. He sold one of them at a profit of 20℅
Orlov [11]

Answer:

2400 and 3600

Step-by-step explanation:

Radio 1 cost = x

Radio 2 cost= 6000- x

  • x*1.2+(6000-x)*0.9= 6000*1.02
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8 0
3 years ago
The army bus has 12 seats on one side. Two soldiers can sit in each seat. If five seats are reserved for equipment, how many bus
marissa [1.9K]

Answer:

<u>80 buses</u> will be required for 1120 soldiers.

Step-by-step explanation:

Given:

Number of seats on One side = 12 seats.

Now Given:

five seats are reserved for equipment.

So we can say that;

Number of seats used by soldiers = 12-5=7\ seats

Number of soldiers on Each seat =2

So we will now find number of soldiers on each bus.

number of soldiers on each bus is equal to Number of seats used by soldiers multiplied by Number of soldiers on Each seat.

framing in equation form we get;

number of soldiers on each bus = 7\times2 = 14\ soldiers

Now we know that;

For 14 soldiers = 1 bus

So 1120 soldiers = Number of buses required for 1120 soldiers.

By Using Unitary method we get;

Number of buses required for 1120 soldiers = \frac{1120}{14} =80

Hence <u>80 buses</u> will be required for 1120 soldiers.

3 0
3 years ago
Find the width of the rectangle prism when the surface area is 208 square centimeters
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Without more information, I assume it's a square and it's w/l =6.5 cm
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marcos had 1 1/3 gallons of punch left over. He poured all of it into several containers for family members to take home. use fr
kramer
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4 0
3 years ago
Read 2 more answers
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