We want to solve the following system of equations.{y=4x(x−2)x+y=2One of the solutions to this system is (2,0).Find the other solution.Your answer must be exact.
Q. We want to solve the following system of equations.{y=4x(x−2)x+y=2One of the solutions to this system is (2,0).Find the other solution.Your answer must be exact.
Substitute and simplify: Substitute the expression for y from the first equation into the second equation.We have y=4x(x−2) and x+y=2. Substituting y in the second equation gives us x+4x(x−2)=2.
Expand and combine like terms: Expand the equation x+4x(x−2)=2.This gives us x+4x2−8x=2.
Factor the quadratic equation: Simplify the equation by combining like terms.This results in 4x2−7x+2=0.
Solve for x: Factor the quadratic equation 4x2−7x+2=0.The factors of this quadratic equation are (4x−1)(x−2)=0.
Substitute and simplify: Solve for x by setting each factor equal to zero.Setting 4x−1=0 gives us x=41.Setting x−2=0 gives us x=2, but we already know that (2,0) is one solution, so we are looking for the other solution.
Check the solution: Substitute x=41 into the first equation to find the corresponding value of y.Substituting into y=4x(x−2) gives us y=4⋅(41)⋅((41)−2).
Check the solution: Substitute x=41 into the first equation to find the corresponding value of y. Substituting into y=4x(x−2) gives us y=4⋅(41)⋅((41)−2). Simplify the expression to find the value of y. This gives us y=4⋅(41)⋅(−47), which simplifies to y=−7.
Check the solution: Substitute x=41 into the first equation to find the corresponding value of y.Substituting into y=4x(x−2) gives us y=4⋅(41)⋅((41)−2). Simplify the expression to find the value of y.This gives us y=4⋅(41)⋅(−47), which simplifies to y=−7. Check the solution (41,−7) in the second equation x+y=2.Substituting x=41 and y=−7 into the equation gives us y1, which simplifies to y2. There is a math error in the previous steps.
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