Question

What should be subtracted from x³–1 to get 2x³–2y²–1? please help​

Answer 1

Answer:

Subtract x or any letter ....

U will get ur answer....

Answer 2

Answer:

-x^3 + 2y^2

Step-by-step explanation:

Let Z should be subtracted from x^3-1 to get 2x^3-2y^2-1.

(x^3-1) -Z= 2x^3-2y^2-1

Z=(x^3-1)-(2x^3-2y^2-1)

=x^3-1-2x^3+2y^2+1

Z = -x^3 +2y^2

which is the required answer.