Question

How do I do this one?

Answer 1

x=0.09765625 or rounded up as 0.1

Explanation:

first you have to add 25 to the 0 and subtract it from the sid it is on. making it look like this

16x²=25

256x=25

now divide both sides by 256 and you get

x=0.09765625 or rounded up as 0.1

Answer 2

Explanation:

`16 {x}^(2) - 25 = 0 \\ 16 {x}^(2) = 0 + 25 \\ 16 {x}^(2) = 25 \\ {x}^(2) = (25)/(16) \\ x = \sqrt{ (25)/(16) } \\ = 1.25 \: or (5)/(4) \: or1 (1)/(4)`

Do note that this question might have two answers as Square roots will actually give you a positive and negative solution. Clarify with your teacher about this.