1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pavel [41]
3 years ago
15

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

Mathematics
1 answer:
notsponge [240]3 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


You might be interested in
The following function represents the profit P(n), in dollars, that a concert promoter makes by selling tickets for n dollars ea
Gre4nikov [31]
A) zeroes

P(n) = -250 n^2 + 2500n - 5250

Extract common factor:

P(n)= -250 (n^2 - 10n + 21)

Factor (find two numbers that sum -10 and its product is 21)

P(n) = -250(n - 3)(n - 7)

Zeroes ==> n - 3 = 0  or n -7 = 0
Then n = 3 and n = 7 are the zeros.

They rerpesent that if the promoter sells tickets at 3  or 7 dollars the profit is zero.

B) Maximum profit

Completion of squares

n^2 - 10n + 21 = n^2 - 10n + 25 - 4 = (n^2 - 10n+ 25) - 4 = (n - 5)^2 - 4

P(n) = - 250[(n-5)^2 -4] = -250(n-5)^2 + 1000

Maximum ==> - 250 (n - 5)^2 = 0 ==> n = 5 and P(5) = 1000

Maximum profit =1000 at n = 5

C) Axis of symmetry

Vertex = (h,k) when the equation is in the form A(n-h)^2 + k

Comparing A(n-h)^2 + k with - 250(n - 5)^2 + 1000

Vertex = (5, 1000) and the symmetry axis is n = 5.



8 0
3 years ago
What is the radius of a circumference 56.5
Bas_tet [7]
8.992254284692088 is the radius I believe
7 0
3 years ago
Please help on number 2?!?!?
Rainbow [258]
Basically, the higher the price an item is the more you will be taking off of it if it is 10 percent off. For example, at $50, 10 percent off is $5, but at $55, it’s $5.50. There is more to take away, making the final price less than the original. Hope that make sense!
8 0
3 years ago
a recipe uses 2 cups of milk per (1) serving. How many servings can be made by using 1 gallon of milk?
Scorpion4ik [409]

Answer:

8

Step-by-step explanation:

16 cups per gallon divided by 2 equalls 8

3 0
3 years ago
Read 2 more answers
This graph represents the design of a child's slide. What is the slope of the slide
iren [92.7K]

Answer:

The slope is 1/2

Step-by-step explanation:

To get the slope, we select any two points on the line and apply the slope formula

The points are;

(5,4) and (9,6)

The formula for the slope is;

m = (y2-y1)/(x2-x1)

m = (6-4)/(9-5) = 2/4 = 1/2

7 0
3 years ago
Other questions:
  • It is found that, when exposed continuously to some fixed level of a weathering agent, a sample of 8 panels of paint coating man
    14·1 answer
  • A customer deposits $500 in an account that pays 4% annual interest. What is the balance after 3 years if the interest is
    6·1 answer
  • PLZ I NEED HELP WITH THIS QUESTIOn
    7·2 answers
  • A student is working two jobs over the summer to pay for a new car. The student gets paid $25 for each lawn that
    15·1 answer
  • Helpppppppppppppppppppppppppppppp
    9·1 answer
  • A certain number line uses 20 spaces between consecutive integers.
    10·1 answer
  • What is the result of 8 divided by 3/8
    8·2 answers
  • Round your answer to two decimal places.
    8·1 answer
  • What are the coordinates of the point on the directed line segment from (-4,-1) to (6,4) that partitions the segment into a rati
    5·1 answer
  • A tennis ball is launched straight up from a height of 4 feet with an initial velocity of 64 feet per second. Use the
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!