Question

The value of f x is equal to 5 x minus 4 x square + 3 when x is equal to -1 is

Answer 1

Answer:

-6

Step-by-step explanation:

when x is replaced with -1 we get -6

Answer 2

Given,

• $f(x) = 5x-4x^2 + 3$ is given.
• x = -1

To find,

• We have to find the value of $f(x) = 5x-4x^2 + 3$ if x = -1.

Solution,

The value of $f(x) = 5x-4x^2 + 3$ when x = -1 is $-6$.

We can simply find the value of $f(x) = 5x-4x^2 + 3$ if x = -1 by substituting the value of x = -1 in the $f(x) = 5x-4x^2 + 3$.

                          $f(x) = 5x-4x^2 + 3$  

                         $f(-1) = 5(-1) -4(-1)^2 + 3$

                         $f(-1) = -5 -4 +3$

                         $f(-1) = -9+3$

                         $f(-1) = -6$

Hence, the value of $f(x) = 5x-4x^2 + 3$ when x = -1 is $-6$.