answersLogoWhite

0


Best Answer

You have to use a system of equations. This means first you solve for one variable and put it in terms of the other. This allows you to have to variables but they are now like terms thus they can be combined. For this specific equation lets say we isolate y. This means we start with the given equation,x^2+3y=5, and subtract x squarted from both sides. Then divide both sides by three. The y is then defined as (-x^2+5)/3. The next step to to then substitute the y i the original equation with the part of the system you just found. Thus the equation would look like this

x^2+ 3((-x^2+5)/3)=5. As you can see the whole y term is thus eliminated and the only variable left is x. Then the x^2 can be subtracted from each side and the three can be distributed on the left. This leaves you -x^2+5=15-3x^2. Then subtract 5 from both sides leaving -x^2=10-3x^2. Then add 3x^2 to both sides leaving 2x^2=10 and divide by 2 and tack square root of both sides leaving. x= square root of 5. Then plug the square root of 5 in for x in the origingal or the equation you solved to find y. Leaving you with y=0. This can be checked by plugging in the answers to the original equation and making sure it ends up w/ the appropriate answer. In this cas (square root of 5)^2 + 3(0)=5 Thus 5=5 so these answers are correct.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How due you solve x squared plus 3y equals 5?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What equation does the height vs time squared graph represent?

The slope of height vs. time squared graph equals (g) - acceleration due to gravity divided by two. In symbols m = g/2, where m is the slope and g is the acceleration due to gravity.


Y equals 2x plus 5 is a linear equation because?

There are no powers e.g 2x2 would be due to the 2


What is acceleration due to gravity in inches per second squared?

Acceleration due to gravity on earth is approx 386 in/s²


If vector B is added to vector A under what circumstances does the resultant vector A plus B have magnitude A plus B. under what circumstances does the resultant vector equals to zero?

if b + a , since a+b equals b + a due to it being commutative . it shud have the same magnitude and direction


What is the acceleration rate due to gravity?

The answer is 9.8m/s squared


Is y equals 2x 5 a Linear equation?

It is not possible to answer the question due to deficiencies in the browser used by WA for posting question. We cannot see most symbols. Please resubmit using words such as "plus", "minus", "equals".


What equals atomic mass minus protons?

Roughly, the number of neutrons. Note that the atomic mass is only approximately equal to the number of protons plus the number of neutrons - there is a relatively small discrepancy, due to the binding energy.


What is the value in meters per second squared if the acceleration of gravity?

The acceleration due to gravity on Earth is approximately 9.81 meters per second squared.


What is the minimum amount of work done by a hydraulic lift to raise a kg aluminum block 2.0 m vertically?

Work equals the mass times the acceleration due to gravity (9.8 meters per second squared) times the height. So the work equals 150 times 9.8 times 2.0 for the answer of 2940 joules.


What is mg in physic?

m is the mass of an object. g is acceleration due to gravity, which is 9.81m/s^2. So mg is mass x acceleration due to gravity. It equals the weight of an object. Typically mass is measured in grams and acceleration due to gravity is in meters per second squared, giving the weight in Newtons.


What is the degree of polynomial of 2x2y-4x5y7 plus 14xy plus 3?

Due to shortcomings of the browser, I regret that it is impossible to tell. For example, the first term could be 2x times 2y or 2x-squared times y. Some educated guesswork suggests degree 12 - from the second term, but I could be wrong.


What is 3x 46 7?

Unfortunately, due to the limitations of browsers, most mathematical symbols get removed and it leaves gibberish that is impossible to answer Please edit/re submit your question with a full sentence of what you want solved, replacing mathematical symbols by words: plus for + equals for = etc [I suspect you were asking for the solution to 3x plus 46 equals 7 which is x = -13]