Answer:
The answer is C. <u>5</u><u><em>a² - </em></u><u>4</u><u><em>a</em></u><u> + 1 </u>
<h3>Step- by- Step:</h3>
<em>First you want to Distribute the Negative Sign:</em>
= 10a² + 3 − 5a + −1 (2 + 5a² − a)
= 10a² + 3 + −5a + (−1) (2) + −1 (5a²) + −1 (−a)
= 10a² + 3 + −5a + −2 + −5a² + a
<em>Add Like Terms:</em>
= 10a² + 3 + −5a + −2 + −5a² + a
= (10a² + −5a²) + (−5a + a )+( 3+ −2)
<u>= 5a² + −4a + 1</u>
<h3>Happy To Help! :)</h3>
