Question

If f(x)=x3+3x2-2x+4 , find f(2)+f(-2)-f(0)

Answer 1

Answer:

f(2) :

• 8 + 6 - 4 + 4 = 14

f(-2) :

• -8 + 6 + 4 + 4 = 6

f(0) :

• 6 + 4 = 10

So the required answer = 14 + 6 - 10

= 10

Answer 2

The value of f(2)+f(-2)-f(0)  is 28.

Step-by-step explanation:

Consider the provided function.

f(x)=x³+3x²-2x+4

Substitute x = 2 in above function.

f(2) = 2³+3(2)²-2(2)+4

f(2) = 8+12-4+4

f(2) = 20

Substitute x = -2 in above function.

f(-2) = (-2)³+3(-2)²-2(-2)+4

f(-2) = -8+12+4+4

f(-2) = 12

Substitute x = 0 in above function.

f(0) = 0³+3(0)²-2(0)+4

f(0) = 4

Now find f(-2)+f(2)-f(0)

f(2)+f(2)-f(0)  = 12+20-4

f(2)+f(2)-f(0)  = 28

The value of f(2)+f(-2)-f(0)  is 28.

#Learn more

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