Question

What is the value of x in the equation 25x2 = 16?

Answer 1

25x2 = 16
x^2 = 16/25
x^2 = 4^2/5^2
x = 4/5

Answer 2

The answer is

`x=(+/-)(4)/(5)`

Explanation:

we have

`25x^(2)=16`

Solve for x

Divide by
`25` both sides

`25x^(2)/25=16/25`

`x^(2)=16/25`

Square root both sides

`x=(+/-)\sqrt{(16)/(25)}`

`x=(+/-)(4)/(5)`