The last one is rational because it is a terminating decimal.
The term in that equation is 3x 7x and -9 hope this helps
Hello,
if p is false then ~p is true
if q is false then ~q is true
if ~p is true and ~q is true then <u>~q and ~p is true</u>
(3x² -7x⁴) from (5x² - 3x⁸)
= 5x² - 3x⁸ - (3x² -7x<span>⁴ )
= </span> 5x² - 3x⁸ - 3x² + 7x<span>⁴
= </span>- 3x⁸ + 7x⁴ + 5x² <span>- </span><span>3x²
</span>
= - 3x<span>⁸ </span>+ 7x⁴ + 2x<span>²</span>