Question

Solve for x: (x - 9)2 = 1

Answer 1

x: (x - 9)^2 = 1

Is your question this one

Answer 2

Why is it that you don't answer the people who try to help you?

Answer 3

sorry yes that is I read it wrong

Answer 4

x: (x - 9)^2 = 1 so this is question

Answer 5

yes

Answer 6

(x - 9)^2 = 1
(x - 9) (x - 9) = 1

Now expand the brackets.

(x - 9) (x - 9) = 1
x^2 - 18x + 81 = 1

Move the 1 across the equal sign

x^2 - 18x + 81 = 1
x^2 - 18x + 80 = 0

Factor

x^2 - 18x + 80 = 0
(x - 8) (x - 10) = 0

x = 8 or 10

Answer 7

i hope this answer satisfies you

Answer 8

method 2:
\[(x-9)^2=1\\
\therefore x-9=\pm1\\
\therefore x-9=-1\qquad\qquad x-9=1\\
\therefore x=8\qquad\qquad\qquad x=10
\]