Question

calcule

a) x2 + 1 =10
b) x2 + 3=19
c) x2 - 1 = 48
d) 3x2 =75
e) x2 /4 =9

Answer 1

letra a)
x =10-1-2
x= 10-3
x= 7
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b)
x=19-3-2
x= 19-5
x= 14
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c)
x= 48+1-2
x= 49-2
x= 47
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