Answer:

Step-by-step explanation:
we know that
The algebraic expression of the phrase " The sum of square of c and d" is equal to adds the square of number c to the number d

The algebraic expression of the phrase " The sum of square of c and d increased by twice their product" is equal to

The given formula 
Solve for y means we have to make y alone
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Add -10 on both sides, we get

As there is multiplication sign between r and y so to solve for y, divide both side by r

Step-by-step explanation:
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