Asked by Shawazi

The sum of two positive numbers is 42 and their product is 425. What are the two numbers.

How would I find the answer to this?

Answers

Answered by R_scott
a + b = 42 ... a = 42 - b

a * b = 425

substituting ... b (42 - b) = 425 ... 42 b - b^2 = 425 ... b^2 - 42 b + 425 = 0

factor or use the quadratic formula
... the two roots equal a and b
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