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
Natasha_Volkova [10]
3 years ago
6

Prove that 3(x+1)(x+7)-2x+5)^2 is never positive

Mathematics
1 answer:
lisov135 [29]3 years ago
5 0

Answer:

Yes, 3(x+1)(x+7)-(2x+5)² is never positive

Step-by-step explanation:

So....

3(x+1)(x+7)-(2x+5)(2x+5)

=3(x²+8x+7)-(4x²+20x+25)

=3x²+24x+21-4x²-20x-25

=-x²+4x-4

You might be interested in
Solve the equation below
Agata [3.3K]
Set up the equation:

4(8.75x-2)=97
35x-8 =97
35x =97+8
35x =105
x. =3

The value of x is 3.
7 0
3 years ago
Luke hiked 6 1/4 miles. Joana hiked 2 1/ 5 times as far. how far did joana hike?​
mel-nik [20]

Answer:

13.75 or 13 3/4

Step-by-step explanation:

7 0
3 years ago
Find x (round to the nearest tenth)
never [62]

9514 1404 393

Answer:

  x = 8

Step-by-step explanation:

By AA similarity, ΔABD ~ ΔCDE. So, corresponding sides are proportional.

  AB/BD = CD/DE

  x/12 = 4/6

  x = 12(4/6)

  x = 8

5 0
3 years ago
Veronica wants to check her work after evaluating -108 -(-6). What steps can she follow to verify her answer
IrinaVladis [17]

Answer:

She can use a calculator

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
F(x)=-3x-7<br> if f(x)=-61, find x
Mars2501 [29]

Answer:

18

Step-by-step explanation:

You have to set the equations equal to each other and then solve for the variable.

Hope this helps:)

4 0
2 years ago
Other questions:
  • Slope = 7/3, y-intercept =3
    9·2 answers
  • Need to know NOW!!!!!! 15 points!
    12·1 answer
  • The profits for the week was $1200. the amount spend was $975 . find the revenue for the week
    5·1 answer
  • What is the value of fraction 1 over 2x3 3.4y when x = 4 and y = 2? 12.8 14.8 25.8 38.8
    7·1 answer
  • Is 21/2 equal to 10.1
    9·2 answers
  • Every Halloween, trick-or-treaters love going to Erica's house to see her spooky decorations and get some of her delicious caram
    11·1 answer
  • I need help I will give brainiest​
    5·2 answers
  • The interquartile range gives the range of the middle_____% of the data​
    10·1 answer
  • Convert this quetion into vulgar fraction​
    14·2 answers
  • Please help!!!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!