Question Solve the quadratic equation Solve using square roots Solve using the quadratic formula Solve using the PQ formula r=0 Evaluate 7πr2=5πr2Add or subtract both sides 2πr2=0Solution r=0 Show Solution Rewrite the equation x2+y2=0 Evaluate 7πr2=5πr2Rewrite the expression 2πr2=0Use substitution More Steps Evaluate 2πr2To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2 2π(x2+y2)Simplify the expression 2πx2+2πy2 2πx2+2πy2=0Solution x2+y2=0 Show Solution Graph