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
UNO [17]
1 year ago
13

Thu gọn biểu thức : (x-5)(x+5)-(x+1)^2

Mathematics
1 answer:
Kipish [7]1 year ago
5 0

(x-5)(x+5)-(x+1)^2\\=x^2 -25-(x^2+2x +1)\\=x^2 -25-x^2-2x -1\\=-2x-26

ANSWER: -2x -26

Ok done. Thank to me :3

You might be interested in
(-3 1/2)-(-4 1/4)= -7/2-(-17/4) equals what
solniwko [45]

Answer:

3/4=3/4

Step-by-step explanation:

8 0
3 years ago
Two polygons are similar with the longest side of one 8 and the longest side of the other 10. Find the ratio of the areas.
liubo4ka [24]
<span>The ratio of sides is, 8:10 = 4:5
squaring it yields, 16:25 
the ratio of the area is 16:25

</span>
7 0
3 years ago
Read 2 more answers
30 points + brainliest answer.<br> Answer D got cut off, it is 5/18.
Basile [38]

C. 5/6

30 people with soda + 45 people with lemonade = 75/90 people

simplifies to 5/6.


3 0
3 years ago
Write the equation of a line that is perpendicular to y=3x-2 that passes trough the point (-9,5)
ElenaW [278]

\huge\boxed{y-5&=-\frac{1}{3}(x+9)}

First, we'll find the slope of the new line. The first line has a slope of 3. Take the negative reciprocal of this (Flip the numerator and denominator, then multiply by -1) to get -\frac{1}{3} for the new slope.

Then, we'll use the point-slope form to make the new equation, where m is the slope and (x_1,y_1) is a point on the line:

\begin{aligned}y-y_1&=m(x-x_1)\\y-5&=-\frac{1}{3}(x-(-9))\\y-5&=-\frac{1}{3}(x+9)\end{aligned}

3 0
1 year ago
Read 2 more answers
Yadier killed 3 4/5 miles from the Nature Center to the waterfall. Then he hiked another 2 2/3 miles to Overlook Point. How far
EastWind [94]

Answer: estimate 7

exact: 6 7/15

Step-by-step explanation: for the estimate round 3 4/5 to 4 and 2 2/3 to 3 and 4 + 3 = 7

for the exact number convert 3 4/5 to 3 12/15

and convert 2 2/3 to 2 10 /15

then add 3 + 2 = 5

and 12/15 + 10/15 = 22/15

convert 22/15 to a mixed number which is 1 7/15

then 5 + 1 7/15

answer 6 7/15

hope this helps mark me brainliest if it helped

7 0
3 years ago
Other questions:
  • Which of the following represents the general term for the sequence 2, 4, 6, 8, 10, . . .?
    12·2 answers
  • Kaylee is painting a design on the floor of a recreation room using equilateral triangles. She begins by painting the outline of
    10·1 answer
  • explain and illustrate what of means when you find a fraction of another number. what operation do you use when you find parts o
    9·1 answer
  • When graphed, the circle with equation
    11·2 answers
  • Find the slope of the line on the graph
    6·2 answers
  • R/t=C-S ;S (Rusiness
    5·1 answer
  • Find h. 9 ft h 7 ft 15 ft Your answer what is the answer ​
    8·1 answer
  • The Number of students in a chess club decreased from 24 to 17. What is the percent decrease? Round your answer to the nearest p
    13·1 answer
  • What is - 9 + 3 = I know its -6 but how
    11·2 answers
  • 1/3x+3/2=2x. solve for x<br><br> first correct answer gets brainliest
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!