Q. Solve the system of equations.x2+y2=580y=−3x+30Write the coordinates in exact form. Simplify all fractions and radicals.(______,______)(______,______)
Substitute y into first equation: Substitute y from the second equation into the first equation.x2+(−3x+30)2=580
Expand and simplify: Expand and simplify the equation. x2+9x2−180x+900=580
Combine like terms: Combine like terms. 10x2−180x+900−580=0
Further simplify: Simplify the equation further. 10x2−180x+320=0
Divide by 10: Divide the entire equation by 10 to simplify. x2−18x+32=0
Factor the quadratic equation: Factor the quadratic equation.(x−16)(x−2)=0
Solve for x: Solve for x by setting each factor equal to zero.x−16=0 or x−2=0
Find x-values: Find the two x-values. x=16 or x=2
Substitute x into y: Substitute x-values into y=−3x+30 to find corresponding y-values.For x=16: y=−3(16)+30=−18For x=2: y=−3(2)+30=24
Write coordinates: Write the coordinates in exact form.First Coordinate: (16,−18)Second Coordinate: (2,24)
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