Question 672521
{{{a^2 - 2a + 1 = 24 + 1}}}
...
{{{a^2 - 2a + 1 = 25}}}
...
(a-1)(a-1) = 25
...
{{{(a-1)^2 = 25}}}
...
{{{sqrt(a-1)^2}}} = +-{{{sqrt(25)}}}
...
a-1 = +- 5
a = +- 5 + 1
a = +- 6
...
{{{highlight_green(a=6)}}} and {{{highlight_green(a=-6)}}}
.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com
Wanting for others what we want for ourselves.