Question

7.
1 point
f(x) = (x + 1) ^3- (x - 1)^2 represents a function which is
1) linear
2) cubic
3) reciprocal
4) Quadratic​

Answer 1

Answer:

7. f(x) = (x + 1) ^3- (x - 1)^2 represents a function which is

1) linear

2) cubic ✔️

3) reciprocal

4) Quadratic.

Answer 2

Answer:

Answer is x³+2x²+5x,Hence it is Cubic

Step-by-step explanation:

Given (x+1)³-(x-1)² function that represents

= first we will solve (x+1)³ and then (x-1)²

= (x+1)³ = x³+1³+3.x.1(x+1)

= (x+1)³= x³+1+3x(x+1)

= (x+1)³= x³+1+3x²+3x

= (x+1)³= x³+3x²+3x+1.............. Equation 1

Now we will find (x-1)²

= (x-1)²= x²+1-2x

=(x-1)²= x²-2x+1..............Equation 2

Now Required Value is (x+1)³ - (x-1)²

= therefore, Equation 1 - Equation 2

= (x+1)³ - (x-1)²

= (x³+3x²+3x+1) - (x²-2x+1)

= x³+3x²+3x+1 - x²+2x-1

= x³+2x²+5x is the answer