We want to solve the following system of equations.{x2+y2=1y=2x+2One of the solutions to this system is (−1,0).Find the other solution. Your answer must be exact.
Q. We want to solve the following system of equations.{x2+y2=1y=2x+2One of the solutions to this system is (−1,0).Find the other solution. Your answer must be exact.
Given Equations: We are given the system of equations:1. x2+y2=12. y=2x+2We need to find the solution to this system other than (−1,0).
Substituting y in the first equation: Substitute the expression for y from the second equation into the first equation to eliminate y and solve for x.So, we replace y in the first equation with (2x+2) to get:x2+(2x+2)2=1
Expanding the squared term: Expand the squared term (2x+2)2 to simplify the equation:x2+(4x2+8x+4)=1
Combining like terms: Combine like terms to form a quadratic equation:x2+4x2+8x+4=15x2+8x+4=1
Setting the quadratic equation to zero: Subtract 1 from both sides to set the quadratic equation to zero:5x2+8x+4−1=05x2+8x+3=0
Factoring the quadratic equation: Factor the quadratic equation to find the values of x:(5x+3)(x+1)=0
Solving for x: Set each factor equal to zero and solve for x:5x+3=0 or x+1=0x=−53 or x=−1Since we already know that x=−1 is part of the solution (−1,0), we will use x=−53 for the other solution.
Substituting x into the second equation: Substitute x=−53 into the second equation y=2x+2 to find the corresponding value of y: y=2(−53)+2 y=−56+2 y=−56+510 y=54
Final Solution: The other solution to the system of equations is (−53,54).
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