2 years ago

If f(x) = x ^ 2 + 3 , then f(x+y)=?

Mathematics

1 answer:

kobusy [5.1K]2 years ago

5 0

Answer:

f(x)=x^2+3

f(x+y)=(x+y)^2+3

this is done by replacing x with (x+y)

f(x+y)=x^2+2xy+y^2+3

therefore : f(x+y)= x^2+y^2+2xy+3

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