Answer:
20t-28
Step-by-step explanation:
expand the bracket
The given expression is a perfect square trinomial.
<h3>
How to classify the given expression?</h3>
Here we have the expression:

Notice that we can rewrite it as:

Then we can see that inside the parenthesis we have a difference of squares, but it is squared, so if we define:

We will have:

Which is in fact, a perfect square trinomial.
If you want to learn more about perfect squares:
brainly.com/question/1538726
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The answer is x=7/2
Because u have to distribute then subtract and last add 38 to both sides
{[5*12]/2}+{[12*25]/2]= 30+150=180m
5 pounds of pork will be your answer