Question

3. (×-4)² - 25 = 0 solve this guys.​

Answer 1

Answer:

x^2+16-8x=0

or x^2-8x+16=0

x^2-(4+4)x+16=0

x^2-4x-4x+16=0

x(x-4) - 4(x-4) =0

(x-4) (x-4) =0

x-4=0 and x-4=0

x=4 and x=4

Answer 2

Answer:

${(x - 4)}^{2} = 25 \\ {(x - 4)}^{2} = {5}^{2} \\ therefore \: x - 4 = 5 \: or \: x - 4 = - 5 \\ x = 9 \: or \: x = - 1$