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
答
原式==x+3+x-2+5-x
=x+6
答
x+6
答
30,x-5
答
√(x+3)²+√(x-2)²+√x²-10x+25 (3
=x+6