Question

If f(x)=(x-a)(x-b) then show that f(x) is greater than or equal to -(a-b)^2/4

Answer 1

Answer:

Step-by-step explanation:

i was annoyed by seeing a wrong solution

here is the correct one

min value (since ax^2 a = 1)

-D/4a<= f(x)

so -(a-b)^2/4 <= f(X)

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