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Pavel [41]
2 years ago
15

Express (x – 1)(x + 2)(2x + 2) in standard form

Mathematics
1 answer:
notsponge [240]2 years ago
7 0

Answer:

2x³ + 4x² - 2x - 4

Step-by-step explanation:

Expand the first pair of factors then multiply by (2x + 2)

= (x² + x - 2)(2x + 2) → distribute terms

= x²(2x + 2) + x(2x + 2) - 2(2x + 2)

= 2x³ + 2x² + 2x² + 2x - 4x - 4 ( collect like terms )

= 2x³ + 4x² - 2x - 4 ← in standard form


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neonofarm [45]
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1.       </span>I read most often.
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2.       </span>When I read my books its takes me 24 hours a day</span> <span><span>
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5 0
2 years ago
In a certain year the population of a country reached 321 million. The overall birth rate was births per​ 1000, and the overall
kkurt [141]

Answer:

Then it would stay at 321 million

Step-by-step explanation:

if the birth and death rate is both 1000 then nothing will change. Population wise.

4 0
3 years ago
What is the midpoint of the line segment with endpoints (-1,3) and (-5,5)?
andrew11 [14]

Answer:

(4, 5)

Step-by-step explanation:

Calculate the midpoint using the midpoint formula

midpoint = [( + ), ( + ) ]

with (,  ) = (1, 2) and (,  ) = (7, 8)

midpoint = [(1 + 7), (2 + 8) ]

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6 0
2 years ago
What is the answer of:<br> z^2 - 4z^2
Novosadov [1.4K]
z^2 - 4 z^2

z - 4z

= - 3 z^2

hope this helps!.
4 0
2 years ago
Car A used 40.5 L of gasoline to travel 450 km. Car B used 18.7 L to travel 220 km. Circle the car with better fuel mileage. Jus
kvasek [131]

Answer:

Car B has the better fuel economy.

Step-by-step explanation:

Calculate the fuel consumption for the two cars:

Car A:  (450 km) / (40.5 L) = 1.11 km per L

Car B:  (220 km) / (18.7 L) = 1.18 km per L

Car B goes further on one L of gasoline than Car A.  

3 0
2 years ago
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