化简:√(x+3)²+√(x-2)²+√x²-10x+25 (3

问题描述:

化简:√(x+3)²+√(x-2)²+√x²-10x+25 (3

原式==x+3+x-2+5-x
=x+6

x+6

30,x-5

√(x+3)²+√(x-2)²+√x²-10x+25 (3=x+3+x-2+5-x
=x+6