0
Anonymous
If 2x2 + 10 = 100 then:
2x2 = 100 -10
2x2 = 90
x2 = 90/2
x2 = 45
x = 6.708 (to 3 decimal places only)
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10 squared equals 100. 102 = 10*10 10*10 = 100
16
b= 10
100
109 = 9 + 100