Question

20a³-20a²+5a=?
-9x²+6x-1=?
-12a²+24ma-12m²=? 6a²-24a⁴+24a⁶=?
7x²+7y⁴-14y²=?​

Answer 1

5a^6,-3x^3-1

Explanation:

we subtract the base and add the exponent