Question

????????? ? \( f(x) \) ???? \( x \) ? ?????????? ???????????? \( f(x) \) ? ?????????? ???????? \( f(x) = 2x + 1 \) ???? \( x = 1 \) ???????????? \( f(1) = 2(1) + 1 = 3 \) ???????? \( f(x) = x^2 - 3x + 2 \) ???? \( x = 2 \) ???????????? \( f(2) = (2)^2 - 3(2) + 2 = 4 - 6 + 2 = 0 \) ???????? \( f(x) = 3x^2 + 2x - 1 \) ???? \( x = -1 \) ???????????? \( f(-1) = 3(-1)^2 + 2(-1) - 1 = 3 - 2 - 1 = 0 \) ???????? ??????? \( f(x) \) ???? \( x \) ? ?????????? ?????????? \( f(x) \) ? ?????????? ?????? (?) \( f(x) = x + 7 \) , \( x = 2 \) (?) \( f(x) = x - 7 \) , \( x = 12 \) (?) \( f(x) = 2x + 7 \) , \( x = 0 \) (?) \( f(x) = 2x - 21 \) , \( x = 11 \) (?) \( f(x) = 4x + 1 \) , \( x = 5 \) (?) \( f(x) = 4x - 8x + 7 \) , \( x = 2 \)

          ????????? ? \( f(x) \) ???? \( x \) ? ?????????? ???????????? \( f(x) \) ? ?????????? ????????
\( f(x) = 2x + 1 \) ???? \( x = 1 \) ???????????? \( f(1) = 2(1) + 1 = 3 \) ????????
\( f(x) = x^2 - 3x + 2 \) ???? \( x = 2 \) ???????????? \( f(2) = (2)^2 - 3(2) + 2 = 4 - 6 + 2 = 0 \) ????????
\( f(x) = 3x^2 + 2x - 1 \) ???? \( x = -1 \) ???????????? \( f(-1) = 3(-1)^2 + 2(-1) - 1 = 3 - 2 - 1 = 0 \) ????????
??????? \( f(x) \) ???? \( x \) ? ?????????? ?????????? \( f(x) \) ? ?????????? ??????
(?) \( f(x) = x + 7 \) , \( x = 2 \)
(?) \( f(x) = x - 7 \) , \( x = 12 \)
(?) \( f(x) = 2x + 7 \) , \( x = 0 \)
(?) \( f(x) = 2x - 21 \) , \( x = 11 \)
(?) \( f(x) = 4x + 1 \) , \( x = 5 \)
(?) \( f(x) = 4x - 8x + 7 \) , \( x = 2 \)

????????? ? f(x) ???? x ? ?????????? ???????????? f(x) ? ?????????? ????????
f(x) = 2x + 1 ???? x = 1 ???????????? f(1) = 2(1) + 1 = 3 ????????
f(x) = x^2 - 3x + 2 ???? x = 2 ???????????? f(2) = (2)^2 - 3(2) + 2 = 4 - 6 + 2 = 0 ????????
f(x) = 3x^2 + 2x - 1 ???? x = -1 ???????????? f(-1) = 3(-1)^2 + 2(-1) - 1 = 3 - 2 - 1 = 0 ????????
??????? f(x) ???? x ? ?????????? ?????????? f(x) ? ?????????? ??????
(?) f(x) = x + 7 , x = 2
(?) f(x) = x - 7 , x = 12
(?) f(x) = 2x + 7 , x = 0
(?) f(x) = 2x - 21 , x = 11
(?) f(x) = 4x + 1 , x = 5
(?) f(x) = 4x - 8x + 7 , x = 2

Added by Aye M.