tallydylan tallydylan

12-11-2019
Mathematics

contestada

4x^2=81 how do I figure this out

Respuesta :

nevayaredwood nevayaredwood

12-11-2019

Answer:

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

Answer Link

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