Questions: What two nonnegative real numbers with a sum of 32 have the largest possible product?
The numbers that have a sum of 32 and have the largest possible product are.
Transcript text: What two nonnegative real numbers with a sum of 32 have the largest possible product?
The numbers that have a sum of 32 and have the largest possible product are $\square$
Solution
Solution Steps
Step 1: Define the Variables
Let x and y be the two nonnegative real numbers such that x+y=32.
Step 2: Express the Product
The product P of the two numbers can be expressed as:
P=x⋅y
Step 3: Substitute for One Variable
Using the equation from Step 1, we can express y in terms of x:
y=32−x
Substituting this into the product equation gives:
P=x⋅(32−x)=32x−x2
Step 4: Find the Maximum Product
To find the maximum product, we can take the derivative of P with respect to x and set it to zero:
dxdP=32−2x
Setting the derivative equal to zero:
32−2x=0
Step 5: Solve for x
Solving the equation from Step 4:
2x=32⟹x=16
Step 6: Find y
Using the value of x to find y:
y=32−x=32−16=16
Step 7: State the Result
The two nonnegative real numbers that have a sum of 32 and yield the largest possible product are x=16 and y=16.
Final Answer
The numbers that have a sum of 32 and have the largest possible product are 16,16.