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
dem82 [27]
2 years ago
15

Rút gọn (x-4) (x-3) -x(x+5) +82

Mathematics
1 answer:
WINSTONCH [101]2 years ago
5 0

Answer:

-12x + 94

Step-by-step explanation:

Simplify:

\left(x-4\right)\left(x-3\right)-x\left(x+5\right)+82

=x^2-7x+12-x\left(x+5\right)+82

=x^2-7x+12-x^2-5x+82

=x^2-x^2-7x-5x+12+82

=-7x-5x+12+82

=-7x-5x+94

=-12x+94

You might be interested in
In an isosceles triangle two sides are equal. The third side is two less than twice the length of the two equal sides. The perim
pogonyaev

Answer:

The equal sides' length = 10

Third side length = 18

Step-by-step explanation:

Let the two equal sides' length be "x"

Let the third side length be "y"

Third side (y) is 2 LESS THAN TWICE the equal side, so we can write:

y = 2x - 2

The perimeter is 38. The perimeters is the sum of all three sides. So we can write:

x + x + y = 38

Replacing y with 2nd equation, we have:

x + x + (2x - 2) = 38

Now, we can solve this for x first:

x + x + (2x - 2) = 38\\x+x+2x-2=38\\4x=38+2\\4x=40\\x=10

Now, y is:

y = 2x - 2

y = 2(10) - 2

y = 20 - 2

y = 18

The equal sides' length = 10

Third side length = 18

3 0
3 years ago
Pls answer these questions
Juli2301 [7.4K]

Answer:

the images not loading so can you please upload it again

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
PLS HELP! <br> find the volume.
Andre45 [30]
Don’t do that it’s a scam and a virus
7 0
3 years ago
Find the degree of the angles whose sine is -1/2 (that's a fraction)
Akimi4 [234]
I think is first one
8 0
3 years ago
Factor the trinomial comoletley x2+5x-84
Annette [7]
Hope this helps you.

8 0
2 years ago
Other questions:
  • Which expression is equivalent to square root of 80
    7·1 answer
  • Help me<br><br>i need help with this​
    5·1 answer
  • Please can someone help me asap
    8·1 answer
  • The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 9:19. There are 152
    8·2 answers
  • Solve 4/x-4=x/x-4-4/3 for x and determine if the solution is extraneous or not
    9·1 answer
  • at the great hair barber shop nita and joe do a total of 95 haircuts each week. if nita does 16 fewer than twice as many as joe,
    9·1 answer
  • For the right triangles below, find the exact values of the side lengths b and d.
    10·1 answer
  • I need number 4 pls help
    7·1 answer
  • Pls help it’s 30 points :)
    11·1 answer
  • 12, 17, 22, ...<br> Find the 36th term.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!