Solve the equation. If necessary, round your answer to the nearest tenth.

4x^2 = 121

2.75, −2.75
5.5, −5.5
11, −11
30.25, −30.25

Question

Solve the equation. If necessary, round your answer to the nearest tenth.

4x^2 = 121


       2.75, −2.75
       5.5, −5.5
       11, −11
       30.25, −30.25

nnesha · Answer

same like last one 
take square root both side 
or u can subtract 121 both side then do difference of square method

nnesha · Answer

square root of 121  =  ??

anonymous · Answer

11

anonymous · Answer

C

hockeychick23 · Answer

its 5.5, -5.5

nnesha · Answer

u have to take square root both side

nnesha · Answer

http://openstudy.com/code-of-conduct DIRECT answer are not allowed

nnesha · Answer

|dw:1424039009999:dw|
u have to take square root both side

anonymous · Answer

ok thanks

nnesha · Answer

$$\sqrt{4x^2} = \sqrt{4} \times \sqrt{x^2} = ???$$

nnesha · Answer

|dw:1424039153494:dw|
when u divide both side 2