Question

$(5t - 5)^2$

Explanation:

Step1: Recall square of difference formula

The formula for $(a-b)^2$ is $a^2 - 2ab + b^2$. Here, $a=5t$, $b=5$.

Step2: Calculate $a^2$

$a^2=(5t)^2=25t^2$

Step3: Calculate $-2ab$

$-2ab=-2\times5t\times5=-50t$

Step4: Calculate $b^2$

$b^2=5^2=25$

Step5: Combine the terms

Add the results from Steps 2-4.

Answer:

$25t^2 - 50t + 25$