question\nexpress (x - 7)^2 as a trinomial in standard form.

Explanation:

Step1: Apply the formula $(a - b)^2=a^{2}-2ab + b^{2}$

Here $a = x$ and $b = 7$, so $(x - 7)^2=x^{2}-2\times x\times7+7^{2}$

Step2: Simplify the expression

$x^{2}-2\times x\times7+7^{2}=x^{2}-14x + 49$

Answer:

$x^{2}-14x + 49$