Question

已知a.b为实数,且根号下a-5+2倍的根号10-2a=b+4

Answer 1

(a-5)^(1/2) + 2(10-2a)^(1/2) = b + 4,a - 5 >= 0,10-2a >= 0,a = 5.b + 4 = 0.b = -4.