Answer:(x - 1)(7x + 12)
Step-by-step explanation:
Question: (6x² + 5x - 3) + (x² - 9)
⇒(6x² + 5x - 3) + (x² - 9)
⇒6x² + 5x - 3 + x² - 9
rearrange
⇒6x² + x² + 5x - 3 - 9
⇒7x² + 5x - 12
Middle term break
⇒7x² + 12x - 7x - 12
⇒x(7x + 12) - 1(7x + 12)
⇒(x - 1)(7x + 12) Answer
hope that helps...
