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
kolbaska11 [484]
3 years ago
7

Why would "-7" in the expression (x^2+3)-(x-7) become positive?

Mathematics
2 answers:
ryzh [129]3 years ago
5 0
You would use the distributive property with the negative. So the second x becomes negative, but since the 7 is already negative it becomes positive. Think of it as if you put the two dashes together you can make a plus sign.
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

x is the variable that's representing a number so -7 would not become posting

Please help me with with this science question

How does potassium dihydrogen phosphate affect soil, water, and air?

You might be interested in
Which equation is correct? 2x+38) - 5x +4 A 7x - 41 B 7x + 41 C 36x - 2<br>or just write your own
bija089 [108]

Answer:

-3x+42

Step-by-step explanation:

(2x+38) - 5x +4

2x+38 - 5x +4

2x+38+ - 5x +4

2x+-5x+38+4

-3x+42

5 0
3 years ago
In my pocket I have 8 quarters and 6 dimes. What fractional portion of the coins in my pocket are dimes
marin [14]

im pretty sure the answer is 3/4

7 0
2 years ago
Read 2 more answers
A coffee distributor plans to mix some Rift Valley coffee that normally sells for $12.10 per pound with some Mexican Shade Grown
-BARSIC- [3]

Answer:

24 pounds of Rift Valley coffee

26 pounds of Mexican Shade Grown coffee

Step-by-step explanation:

If R is pounds of Rift Valley coffee, and M is pounds of Mexican Shade Grown coffee, then:

R + M = 50

12.10 R + 13.10 M = 12.62 (50)

Substitute:

12.10 R + 13.10 (50 − R) = 12.62 (50)

12.10 R + 655 − 13.10 R = 631

R = 24

M = 26

8 0
3 years ago
Normally I would do a 100 point give away but I'm feeling sad today D: Please help cheer me up. I might think about doing a 100
ch4aika [34]

Answer:

um hi I don't know what to say so I put a picture of my dog

7 0
3 years ago
Read 2 more answers
4xy-28x = 16 work and answer please
algol [13]
Lol do your own work. Pay attention in class, it'll pay off ;)
6 0
3 years ago
Other questions:
  • 20(−1.5r+0.75) expand the expression and combine like terms
    5·2 answers
  • Simplify a - {b - [c - (d - e) - f] - g}.
    9·1 answer
  • Solve the following linear equation and please explain how you did it 6y+8=6(y+4)−16
    10·2 answers
  • Is it possible for a function to have two vertical asymptotes?
    12·1 answer
  • Solve.<br><br> 9.4 = - t/3.5<br><br> t =
    14·1 answer
  • Is √38 rational or irrational
    8·2 answers
  • Let X be the number of Heads in 10 fair coin tosses. (a) Find the conditional PMF of X, given that the first two tosses both lan
    15·1 answer
  • You are given the parametric equations x=2cos(θ),y=sin(2θ). (a) List all of the points (x,y) where the tangent line is horizonta
    11·1 answer
  • X-y=-10<br> 2x+4y=22 Solving Systems by Substitution
    15·1 answer
  • Which is the solution to the inequality? cb- 8 15​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!