Question

express (x - 7)^2 as a trinomial in standard form. answer attempt 1 out of 2

Explanation:

Step1: Recall the formula for $(a - b)^2$

$(a - b)^2=a^{2}-2ab + b^{2}$

Step2: Identify $a$ and $b$

Here $a = x$ and $b = 7$.

Step3: Substitute values into formula

$(x - 7)^2=x^{2}-2\times x\times7+7^{2}$

Step4: Simplify the expression

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

Answer:

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