0
How do you solve the simultaneous equations of 2x plus y equals 1 and x squared -xy -y squared equals -11?
2x+y = 1 and x2-xy-y2 = -11
Substitute the first equation into the second equation after rearranging it to y = 1-x:
x2-x(1-2x)-(1-2x)(1-2x) = -11
Multiply out the brackets being careful with the negative values and bring over -11 to the LHS:
x2-x+2x2-1+4x-4x2+11 = 0
Collect like terms: -x2+3x+10 = 0
Factorise: (-x+5)(x+2) = 0
Therefore: x = -2 or x = 5
Solution: x = -2 and y = 5 or x = 5 and y = -9
What else can I help you with?
What is the answer to this simultaneous equations 5x plus 2y equals 11 4x - 3y equals 18?
To solve the simultaneous equations (5x + 2y = 11) and (4x - 3y = 18), we can use the substitution or elimination method. By manipulating the equations, we find that (x = 4) and (y = -3). Thus, the solution to the simultaneous equations is (x = 4) and (y = -3).
9x-5y-4 equals 0 Solve for y?
Can't be done unless you have another equation with the same x and y. Then you would solve for simultaneous equations.
How do you solve x minus y equals 6 and x plus y equals -2?
4
What are simultaneous equation in maths?
Simultaneous equations are where you have multiple equations, often coupled with multiple variables. An example would be x+y=2, x-y=2. To solve for x and y, both equations would have to be used simultaneously.
How do you solve linear equations when the given is x equals -3 y equals 5?
If you already know that x = -3 and y = 5 what linear equations are you wanting to solve?
What is it called when you solve for two lines of algebraic equations simultaneousley?
Its called Simultaneous Equations
9x-5y-4 equals 0 Solve for y?
Can't be done unless you have another equation with the same x and y. Then you would solve for simultaneous equations.
How do you solve simultaneous quadratic equations?
Graphically might be the simplest answer.
What did ABC computers do?
solve systems of up to 29 simultaneous equations.
How do you solve x minus y equals 6 and x plus y equals -2?
4
How do you solve parallel equations?
Parallel lines never meet and so parallel equations do not have any simultaneous solution.
What does John Atanasoff electronic computer do?
Solve simultaneous equations of up to 29 variables.
How do you solve this problem -3x plus 2y equals 1 in elimination?
The elimination method only works with simultaneous equations, hence another equation is needed here for it to be solvable.
What are simultaneous equation in maths?
Simultaneous equations are where you have multiple equations, often coupled with multiple variables. An example would be x+y=2, x-y=2. To solve for x and y, both equations would have to be used simultaneously.
Why inversion of matrix is usefull?
The most common use for inverted matrices is to solve a set of simultaneous equations.
How do you answer 4X-3y equals 8?
This equation is not possible unless you are given another equation related to x and y. Then you could use simultaneous equations to solve this. However in this came this question is impossible
How do you solve simultaneous equations?
simultaneous equationshttp://www.answers.com/main/Record2?a=NR&url=http%3A%2F%2Fcommons.wikimedia.org%2Fwiki%2FImage%3AEmblem-important.svg: === === : === === === === # # # # # === ===: === === : === === : === === : === === : === ===
