Question

what is the square root of 121 and 169 by method of repeated subtraction

Answer 1

121-1=120---1
120-3=117---2
117-5=112---3
112-7=105---4
105-9=96---5
96-11=85---6
85-13=72---7
72-15=57---8
57-17=40---9
40-19=21---10
21-21=0---11
11 times
169-1=168
168-3=165
165-5=160
160-7=153
153-9=144
144-11=133
133-13=120
120-15=105
105-17=88
88-19=69
69-21=48
48-23=25
25-25=0
13 times

Answer 2

Answer:

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