Question

Given the quadratic function f(x) = 25x2 – 100x + 100, find a value of x such that f(x) = 25.

Answer 1

25x^2-100x+100 =25 , can you solve this?

Answer 2

25x^2-100x+75=0

Answer 3

yep

Answer 4

x=1
and x=3

Answer 5

you can factor out 25

Answer 6

ok I figured it out sorry I didn't read the problem properly, but thank you all for the help

Answer 7

np

Answer 8

just to be sure I did this accurately is this correct?
25=25x^2-100x+100
0=25x^2-100x+75
x=-100±√-100^2-4*25*75
______________________
2*25
x=-100±√-10000-7500
___________________
50
x=-100±√17500
___________
50
x=-100+√17500 x=-100-√17500
___________ and ___________
50 50