Find two numbers whose difference is 42 and whose product is a minimum. Step 1 If two numbers have a difference of 42, and one of them is x + 42, then the other is 21, – 21 Step 2 The product of two...

i need step 5 please

Extracted text: Find two numbers whose difference is 42 and whose product is a minimum. Step 1 If two numbers have a difference of 42, and one of them is x + 42, then the other is 21, – 21 Step 2 The product of two numbers x and x + 42 can be simplified to be x + 42 42 x. Step 5 Since f "(x) there must be an absolute minimum at x = -21. Thus, the two numbers are as follows. (smaller number) (larger number)