solve for the indicated variable y=kx(4-2) for x

Question

1. use the square root property to solve the equation (7x-6)^2=2.

 

2.solve for the indicated variable y=kx(4-2) for x

Answer 1

(7x-6)^2  =  2

 

when we take a sq root, the right side has to be +/-    

 

sqrt((7x-6)^2) = +/- sqrt(2)

 

7x - 6 = +/- sqrt(2)

7x = 6 +/- sqrt(2)

 

x =  [6 +/- sqrt(2)] / 7