Question

Solve
If f(x) = (x - 1) (2x + 1), find f(1), f(2), f(-3)

Answer 1

If f(1) then the result will be 0
If f(2) then the result is 3
If f(-3)cthen the result is 20

Answer 2

Answer:

f(1) = 0

f(2) = 5

f(-3) = 20

Step-by-step explanation:

In the given question,

We have been provided,

f(x) = (x - 1)(2x + 1)

So,

We need to calculate the value of function, f, at x = 1, at x = 2 and at x = -3.

So,

At, x = 1

f(1) = (1 - 1)(2(1)+ 1) = 0

Therefore,

f(1) = 0.

At, x = 2

f(2) = (2 - 1)(2(2) + 1)

f(2) = 5

At, x = -3

f(-3) = (-3 - 1)(2(-3) + 1)

f(-3) = 20

Therefore, we have the values of f(1), f(2) and f(-3) as 0, 5 and 20 respectively.