Greetings!
Answer:
12x² -27x + 13
Step-by-step explanation:
First of all, expand the first two brackets and put the correlating values near each other:
10x² + 5x² -19x -8x -2 +13
10x² + 5x² = 15x²
-19x + - 8x = -27x
-2 + 13 = 11
15x² - 27x + 11
Now, subtract the values inside the third bracket:
15x² - 3x² = 12x²
11 - -2 = 11 + 2 = 13
So the end result is:
12x² -27x + 13
Hope this helps!
