Q. Solve the system of equations.y=−x−24x2+y2=488Write the coordinates in exact form. Simplify all fractions and radicals.(_,_)(_,_)
Substitute and Simplify: Substitute the expression for y from the first equation into the second equation.Given the system of equations:y=−x−24x2+y2=488We substitute y in the second equation with the expression from the first equation:x2+(−x−24)2=488
Expand and Combine Terms: Expand the squared term and simplify the equation.x2+(−x−24)2=488x2+(x2+48x+576)=488Combine like terms:2x2+48x+576=488
Move and Simplify Further: Move all terms to one side to set the equation to zero and simplify further.2x2+48x+576−488=02x2+48x+88=0Divide the entire equation by 2 to simplify:x2+24x+44=0
Factor the Quadratic: Factor the quadratic equation.We look for two numbers that multiply to 44 and add up to 24. These numbers are 22 and 2.(x+22)(x+2)=0
Solve for x: Solve for x by setting each factor equal to zero.x+22=0 or x+2=0x=−22 or x=−2
Find y-Values: Find the corresponding y-values for each x-value by substituting back into the first equation.For x=−22:y=−(−22)−24y=22−24y=−2For x=−2:y=−(−2)−24y=2−24y=−22
Write Coordinates: Write the coordinates in exact form.The solutions to the system of equations are the points where the values of x and y satisfy both equations. Therefore, the coordinates are:(−22,−2) and (−2,−22)
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