Answer:
1
Step-by-step explanation:
12-4x-10-3+(8x-5x)
collect like terms
12-4x-10-3+(3x)
remove the parenthesis
12-4x-10-3+3x= 1
Answer:
10x² - 9x - 13
Step-by-step explanation:
6x² - (4x + 10) - 3 + (4x² - 5x)
~Remove parenthesis
6x² - 4x + 10 - 3 + 4x² - 5x
~Combine like terms
10x² - 9x - 13
Best of Luck!