Question 129482
I'LL DO THE FIRST 3 TO SHOW YOU HOW TO DO THE REST. OK?
1) SQRT20+SQRT80=SQRT4*5+SQRT16*5=2SQRT5+4SQRT5=6SQRT5 ANSWER.
2) SQRT12-2SQRT3=SQRT4*3-2SQRT3=2SQRT3-2SQRT3=0 ANSWER.
3) SQRT28-SQRT62=SQRT4*7SQRT62=2SQRT7-SQRT62 ANSWER.
GOOD LUCK.