Question

e)x2 - 16 = 0
0 EX
f) - x2 + 4 = 0
g)x2 - 3 = 0
h) - x2 +81 = 0
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Answer 1

e)x2 - 16 = 0

x² = 16

x = √16

x = ± 4

f) - x2 + 4 = 0

x² = 4

x = √4

x = ± 2

g)x2 - 3 = 0

x² = 3

x = ± √3

h) - x2 +81 = 0

x² = 81

x = √81

x = ± 9