Question

Solving Quadratic Functions
36x^2=100

36x-100=0
9x^2-25
root 9= 3
root 25 = 5

Factorized: (3x+5)(3x-5)

My Ans: -5/3, 5/3
Is this correct?

Answer 1

x^2 = 100/36 (divide by 36 on both sides)
x^2 = 25/9 (reduce fraction)
x = sqrt(25/9) (square root both sides)
x = 5/3 (simplify. the sqrt of 25 = 5 and the sqrt of 9 = 3)

Answer 2

OR
x^2= 100/36 =10^2/6^2

x= +/- 10/6 = +/- 5/3

Answer 3

and you are correct :)