How is subtracting polynomials similar to subtracting integers

When subtracting integers you have to change the sign of the second integer; When subtracting polynomials you have to change the sign of each term in the second polynomia. Then follow rules for addition of integers .

Hope this helps!

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

step-by-step explanation:

no solution.