Question

x^3 + 1/x^3 if x + 1/3 = 3​

Answer 1

Answer:

Let's solve for f.

x3+(

1

x3

i)(f)x+

1

3

=3

Step 1: Multiply both sides by 3x^2.

3x5+3fi+x2=9x2

Step 2: Add -3x^5 to both sides.

3x5+3fi+x2+−3x5=9x2+−3x5

3fi+x2=−3x5+9x2

Step 3: Add -x^2 to both sides.

3fi+x2+−x2=−3x5+9x2+−x2

3fi=−3x5+8x2

Step 4: Divide both sides by 3i.

3fi

3i

=

−3x5+8x2

3i

f=

−3x5+8x2

3i

Answer:

f=

−3x5+8x2

3i