Answers

2014-03-11T19:03:24+08:00
I got it 
1.√(5+3)² + (-4-7)² *all over the square root*
=√64+121
=√185
2.√(4+6)²+(5-0)²
=√100+25
=5√5
3. √(5+2)²+(3+5)²
=√49+64
=√133
4.√(-1-0)²+(-7-7)
=√1+196
=√197 
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