f(x)= 2x2 - 7x+3 find f(2)?

Question

how do i solve this

Answer 1

Assume:-
f ( x ) = 2 x ² - 7x + 3
f ( 2 ) = 2 x 4 - 14 + 3
f ( 2 ) = - 3

Answer 2

Plug the x in as 2

-7 is the answer

1) 2x2-7(2) +3
2) 4-14+3
3) -7

Answer 3

f(x)= 2x2 - 7x+3 find f(2)
subtitute x for 2.
f(x=2) = 2(2)^2 - 7(2) + 3
f(2) = 2*4 - 14 + 3
f(2) = 8 - 14 + 3 = -3

Answer 4

IF -3 replaced into +3 we could merely comparable different yet now we cant delta=40 9-(4*2*-3)=seventy 3 2 solutions are => x1=(+7+sqareroot(seventy 3))/2 and the different x2=(+7-sqareroot(seventy 3))/2 so in simplified we would desire to continuously write (x-x1)(x-x2)=0 if question is 2x^2-7x+3=0 we've A=(2x )(2x ) then (2x-6)(2x-a million) so A=(x-3)(2x-a million) the solutions are=> x=3 & x=a million/2

Answer 5

is it f(x)=2x^2-7x+3 or F(x)=...?
if its f(x) you just plug in a 2 to the x which will give you -3
2(2)^2-7(2)+3 = -3

Answer 6

f(2)=2x2-7(2)+3
=4-14+3
=-10+3
=-7

Answer 7

Hi,

f(2) means to let x = 2, so your equation becomes:

f(x) = 2x² -7x + 3

Substitute 2 for x.

f(2) = 2(2)² -7(2) + 3
f(2) = 2(4) - 7(2) + 3
f(2) = 8 - 14 + 3
f(2) = -6 + 3
f(2) = -3

So the answer is -3.

I hope that helps!! :-)

Answer 8

x = 2, plug it in and solve

it's like saying 3x + 4, if x = 2
you would do 3 x 2 + 4 = 10

Answer 9

f(2)= 4-14+3
f(2)= -7

Answer 10

2(2)2 - 7(2)+3
8-17



-9?