ANSWER
The standard form is:

EXPLANATION
The given product is

We expand using the distributive property to get:

Expand the parenthesis;

This simplifies to

Standard form is when the polynomial is arranged in decreasing powers of x.
Step-by-step explanation:
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Answer:
A 3/30=x/12
Step-by-step explanation:
According to the recipe,
For 2 batches, 3 cups of flour required.
One batch has 15 mix rolls
Then 2 batches will have 2 (15) = 30 rolls
Each person gets one roll, so 3 cups of flour is required for 30 people.
The quanity of flour is proportional to the number of people.
Let x be the quantity of flour required for 12 people.
I'm not entirely sure what you're asking, but I believe the answer to your question can be solved by dividing both 6 and 24 by 6 which would give you 1/4, making your answer 4. Hope this helps!