Question

If f(x)=(x-a)(x-b) ,find the value of x for which f'(x)=0

Answer 1

\[\LARGE f'(x)=2x-a-b\]

Answer 2

i have to equate it to 0?

Answer 3

2x=a+b

Answer 4

yes

Answer 5

x=..?

Answer 6

x=a+b/2?

Answer 7

yup, don't forget to put brackets
(a+b)/2

Answer 8

yes..is that it? seriously :P

Answer 9

yup.

Answer 10

alright!