Question #830b6

Apr 4, 2017

See the solution process below:

Explanation:

This is a special form which has the rule:

${\left(a - b\right)}^{2} = {a}^{2} - 2 a b + {b}^{2}$

Substituting $x$ for $a$ and $8$ for $b$ gives:

${\left(x - 8\right)}^{2} = {x}^{2} - 2 \left(8 x\right) + {8}^{2} = {x}^{2} - 16 x + 64$