∵a的平方+b的平方-10a-6b+34=0∴（a-5)²+(b-3)²=0∴a=5,b=3(a+b分之a-b)²除以ab分之(a²-b²)[a²-b²分之a²+2ab+b²]=[(a-b)²ab]/[(a+b)²(a²-b²)][(...