Question

6z^6-21z^4-12z^2
give in step by step explanation​

Answer 1

This expression cannot be simplified, as you cannot add or subtract variables raised to different exponents.

Answer 2

Explanation:

6z⁶ - 21z⁴ - 12z² = 2*3*z⁶ - 3*7*z⁴ - 4*3*z²

= 3z² (2z⁴ - 7z² - 4)