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
vesna_86 [32]
3 years ago
13

Could you help me with math? 2x^2 + 8x = 0How to solve it?

Mathematics
2 answers:
-BARSIC- [3]3 years ago
5 0
2x^2 + 8x = 0\\ \\2x( x+4)=0 \\ \\2x=0 \ \ or \ \ x+4 = 0 \\ \\ x=0 \ \ or \ \ x = -4 \\ \\Answer : \ x=0 \ \ or \ \ x= -4


daser333 [38]3 years ago
3 0
2x^2 + 8x = 0\\\\2x(x+4)=0\ \ \ \Leftrightarrow\ \ \ (2x=0\ /:2\ \ or\ \ \ x+4=0)\\\\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=0\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=-4
You might be interested in
A car traveled at a constant speed for 4 hours and covered 144.6 miles. It used 12 gallons of gas to travel this distance. How f
FromTheMoon [43]
In one hour he traced the distance of: 36.15 miles

With one gallon of gas he went: 12.05 miles 

;) There you go! Good Luck!
8 0
3 years ago
Read 2 more answers
Hey if you're willing to help me with this, it will be very much appreciated, thanks maties and mates.
Nastasia [14]

Answer:

Width=37in

Length=55in

Step-by-step explanation:

Let x in be the width dimension, the length dimension will be x+18 in. Area of a rectangle is calculated as A=lw. Given  the area as2143 sq in, x can be calculated as:

Area= x(18+x)\\\\=18x+x^2\\\\

#Substitute for every x in our function to find the true value of x:

x=37\\\\A=x^2+18x\\\\=37^2+18\times37\\\\=2035 \ in^2#l=37+18=55in

for x=38:

x=38\\\\A=x^2+18x\\\\=38^2+18\times38\\\\=2128 \ in^2#l=38+18=56in

For x=39:

x=39\\\\A=x^2+18x\\\\=39^2+18\times39\\\\=2223 \ in^2#l=39+1854in

From the calculations above, A television with a width of 37 in and length 55in has its area closest to 2143 sq in.

4 0
3 years ago
What is the y-intercept of the following equation of y = 2x - 5?
ANTONII [103]

Answer:

-5

Step-by-step explanation:

The last number is always the y intercept. This number is -5 in this case.

7 0
3 years ago
Evaluate y^2+7y-8 when y=-3
inessss [21]

Answer:

the answer if the first picture

Step-by-step explanation:

the second one is the explanation

6 0
3 years ago
2x + 8y = 6<br> -5x - 20y = -15
kodGreya [7K]

Answer:

The total would be 40.53

Or

Solve for the first variable in one of the equations, then substitute the result into the other equation.

x  =  3  −  4 y

Step-by-step explanation:

This question is incomplete so

7 0
3 years ago
Other questions:
  • I NEED THIS ANSWERED ASAPPPPPP!!!!!!!!!!!!!1111 THANKS
    9·1 answer
  • Which shape is used to mark equal distances in a construction?
    5·2 answers
  • A vegetable seller brought 294 pumpkin to sell he sold 2/3 of the pumpkins by evening how many pumpkin were sold
    12·1 answer
  • The ratio of adults to children is 5 to 3. If there is 120 people. How many are children?
    13·1 answer
  • Find the zeroes of 6x^4+x^3+2x^2-4x+1
    12·1 answer
  • Another question math
    11·2 answers
  • Find the missing section. Answers must be in fraction form.
    11·1 answer
  • Point A is at (3,-8) and point B is at (7,3).<br> What is the midpoint of line segment AB?
    15·2 answers
  • The radius is longer than the diameter.<br><br> A) never true<br><br> B) always true
    10·1 answer
  • What is the answer, i tried everything but i can’t seem to get the right answer
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!