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

Answer 1

@Ahsome do you know how to do this one?

Answer 2

@rational

Answer 3

divide 4 both sides

then notice that 4 and 121 are perfect squares

Answer 4

4 = 2^2
121 = 11^2

Answer 5

I think that makes sense, thanks