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.

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 $\square$
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Solution

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Solution Steps

Step 1: Define the Variables

Let x x and y y be the two nonnegative real numbers such that x+y=32 x + y = 32 .

Step 2: Express the Product

The product P P of the two numbers can be expressed as: P=xy P = x \cdot y

Step 3: Substitute for One Variable

Using the equation from Step 1, we can express y y in terms of x x : y=32x y = 32 - x Substituting this into the product equation gives: P=x(32x)=32xx2 P = x \cdot (32 - x) = 32x - x^2

Step 4: Find the Maximum Product

To find the maximum product, we can take the derivative of P P with respect to x x and set it to zero: dPdx=322x \frac{dP}{dx} = 32 - 2x Setting the derivative equal to zero: 322x=0 32 - 2x = 0

Step 5: Solve for x x

Solving the equation from Step 4: 2x=32    x=16 2x = 32 \implies x = 16

Step 6: Find y y

Using the value of x x to find y y : y=32x=3216=16 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 x = 16 and y=16 y = 16 .

Final Answer

The numbers that have a sum of 32 and have the largest possible product are 16,16 \boxed{16, 16} .

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