Answer & Step-by-step explanation:
First, we have to subtract 3x² + 4x - 5 from 7x² + x + 9. Then we subtract 4x² - 3x from that difference.
<em>(7x² + x + 9) - (3x² + 4x - 5)</em>
Distribute the negative sign (-) to 3x² + 4x - 5
<em>7x² + x + 9 - 3x² - 4x + 5</em>
Combine like terms
<em>4x² - 3x + 14</em>
Now, we are going to subtract 4x² - 3x from this difference.
<em>(4x² - 3x + 14) - (4x² - 3x)</em>
Distribute the negative sign (-) to 4x² - 3x
<em>4x² - 3x + 14 - 4x² + 3x</em>
Combine like terms
<em>14</em>
So, after subtracting the first two polynomials and then subtracting 4x² - 3x from that difference, the final answer will be 14
