SOLUTION: The difference between two positive numbers is 4. If twice the square of the larger number is added to three time the smaller, the sum is 53.

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Question 144713: The difference between two positive numbers is 4. If twice the square of the larger number is added to three time the smaller, the sum is 53.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
Larger positive number: x
Smaller positive number: y
Difference x-y=4
Twice the square of the larger:2x%5E2
Three times the smaller: 3y
The sum is 53: 2x%5E2%2B3y=53

Re-write the difference equation: y=x-4

Substitute in the other equation: 2x%5E2%2B3%28x-4%29=53

2x%5E2%2B3x-12-53=0

2x%5E2%2B3x-65=0

Solve the quadratic (it factors) for x. Discard the negative root since the question asked for a pair of positive numbers. Then subtract 4 to get y.