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
Igoryamba
2 years ago
12

Multiply the expressions below. Then simplify if possible. a. 2x(3x – 4) b. (x+3)(2x-5) C. (2x + 5)(2x – 5) d. X(2x + 1)(x-3)​

Mathematics
1 answer:
Keith_Richards [23]2 years ago
5 0

Answer:

a) 6x² - 8x

b) 2x² + x - 15

c) 4x² - 25

d) 2x³ + 7x² - 3x

Step-by-step explanation:

a) 2x (3x - 4)

brackets means multiplication or into

base on the question

2x * 3x = 6x^2

and

2x * (-4) = -8x

therefore

6x² - 8x

is the answer

b) (x + 3) (2x - 5)

clear brackets with (x + 3)

i. x * (2x - 5) = 2x^2 - 5x

ii. +3 * (2x - 5) = 6x - 15

add i add ii

2x² - 5x + 6x - 15

if u noticed, there are similar figures 6x and 5x, so we take like term

2x² + x - 15 answer

c) (2x + 5) (2x - 5)

clear bracket

i. 2x * (2x - 5) = 4x² - 10x

ii. 5 * (2x - 5) = 10x - 25

add i and ii

4x² - 10x + 10x - 25

collect terms

4x² - 25 answer

d) x (2x + 1) (x - 3)

I) first we deal with x(2x+1)

x * (2x + 1) = (2x² + x)

II) then we find the multiplication of

(2x² + x) (x - 3)

i. 2x² * (x - 3) = 2x³ - 6x²

ii. x * (x - 3) = x² - 3x

add i and ii

2x³ - 6x² + x² - 3x

collect terms

2x³ - 5x² - 3x

You might be interested in
Its not A i just took the test on edg and it was wrong.
Nat2105 [25]

Answer:

That sucks

Step-by-step explanation:

4 0
3 years ago
The perimeter of a sand volleyball court is 50 meters. It is 9 meters wide. How long is it?
andreyandreev [35.5K]
9(2) + 2(y) = 50. solve for y. 32=2y, y=16. It is 16 meters long.
7 0
3 years ago
Read 2 more answers
Recopier et compléter le tableau suivant
NemiM [27]

here click on my files.com/3_& and it should give you the answer

8 0
2 years ago
Explain how cell<br> division is<br> controlled.
Sholpan [36]
A variety of genes are involved in the control of cell growth and division. ... Tight regulation of this process ensures that a dividing cell's DNA is copied properly, any errors in the DNA are repaired, and each daughter cell receives a full set of chromosomes.
6 0
3 years ago
2(x−3)=(x−1)+7
Oksanka [162]

Answer:

x = 12

(getting to the 20 character limit, please ignore this)

6 0
2 years ago
Read 2 more answers
Other questions:
  • a catalog store has 6% of its orders returned for a refund. the owner predicts that a new candle will have 812 returns out of th
    8·2 answers
  • Nathan thinks of a number, he doubles the number, he adds 5, his answer is 17, what was his number
    12·2 answers
  • Rounding 3.1 to the given place hundredth, tenth, tens
    6·2 answers
  • What is 17.5% as a decimal?
    15·1 answer
  • 3 to the second power times 3 to the 4th power
    14·2 answers
  • What is the distance between -24 and -16.5 on a number line?
    10·2 answers
  • PLS HELP!!
    7·1 answer
  • Please help I really need this answer since I am preparing for my nationals
    5·1 answer
  • One angle of an isosceles triangle measures 40°. Which other angles could be in that isosceles triangle?
    12·1 answer
  • Please help quick...
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!