Question

If f(x) = x4 – 2x + 7 then, f(0) + f(2)=
A) 19
B) 7
C) 38
D) 26​

Answer 1

7+16-4+7=26
f(0)=7
f(2)=16-4+7

Answer 2

Answer:

D) 26

Solution:

Given Equation → x⁴ – 2x + 7

So, f (x) = x⁴ – 2x + 7

For finding f(0) just substitute the value of x as 0

f(0) = 0⁴ - 2(0) + 7

⇒ f(0) = 0 - 0 + 7

⇒ f(0) = 7

For finding f(2), substitute the value of x as 2

f(2) = 2⁴ - 2(2) + 7

⇒ f(2) = 16 - 4 + 7

⇒ f(2) = 12 + 7

⇒ f(2) = 19

Now adding f(0) and f(2);

f(0) + f(2)

= 7 + 19

= 26

∴ f(0) + f(2) = 26