Solve the system of equations.y=38x+41y=x2+38x−40Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Q. Solve the system of equations.y=38x+41y=x2+38x−40Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Substitute y in second equation: Substitute y from the first equation into the second equation since they are both equal to y. This gives us the equation 38x+41=x2+38x−40.
Simplify the equation: Simplify the equation by subtracting 38x from both sides and subtracting 41 from both sides to get 0=x2−40−41.
Further simplify to x2−81: Further simplify the equation to get 0=x2−81.
Factor the quadratic equation: Factor the quadratic equation to find the values of x. This gives us (x−9)(x+9)=0.
Solve for x: Set each factor equal to zero and solve for x. This gives us x=9 and x=−9.
Substitute x=9: Substitute x=9 into the first equation y=38x+41 to find the corresponding value of y. This gives us y=38(9)+41.
Calculate y when x=9: Calculate the value of y when x=9. This gives us y=342+41, which simplifies to y=383.
Substitute x=−9: Substitute x=−9 into the first equation y=38x+41 to find the corresponding value of y. This gives us y=38(−9)+41.
Calculate y when x=−9: Calculate the value of y when x=−9. This gives us y=−342+41, which simplifies to y=−301.
More problems from Solve a nonlinear system of equations