Question

Find the value of x
(x-5)^ 2=625

Answer 1

Answer:

30

Step-by-step explanation:

(x-5)^ 2=625

or, (x-5)^2 = 25^2

or, (x-5 = 25

or, x = 30 (ans)

Answer 2

$( {x - 5})^{2} = 625$

${x}^{2} + {5}^{2} - 2 \times x \times - 5 = \sqrt{625}$

${x}^{2} + 25 + 10x = 25$

${x}^{2} + 10x = 25 - 25$

${x}^{2} + 10x = 0$

$= {x}^{2} + 10$