Question

3x^4 – 4x^2 –6) – (5x^4 – 2x^2 - 4) Find the difference. A) -8x^4– 10 B) -2x^4- 6x² - 2 C) -8x4 - 2x^2 - 10 D –2x^4 – 2x^2 - 2

Answer 1

the given expression is,

$=(3x^4-4x^2-6)-(5x^4-2x^2-4)$$\begin{gathered} =3x^4-5x^4-4x^2+2x^2-6+4 \\ =-2x^4-2x^2-2 \end{gathered}$

the answer is option D