- #1
iRaid
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Homework Statement
Verify by substitution that each given function is a solution of the given differential equation. Throughout these problems, primes denote derivatives with respect to x.
y'=3x2; y=x3+7
Homework Equations
The Attempt at a Solution
Well obviously I see that the derivative of y=x3+7 is just 3x2, but what does it mean by verifying by substitution?