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Meggie
Mathematics
13 June, 07:36
4x^2=81 how do I figure this out
+2
Answers (
1
)
Katelyn Leonard
13 June, 07:45
0
x = ± 9/2
Step-by-step explanation:
isolate the
x
2
term, by dividing by 4
hence
x
2
= 81/4⇒
x
=
±
√
81
4
=
±
9
2
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