Question

please show me how to do this?

(6b^3+5b-8)-(8b-1+4b^3)

Answer 1

Result is\[2b ^{3} -3b -7\]
The whole problem is addition and subtraction,
start by removing parenthesis, to do this, distribute that minus sign through the second set of parentheses so it becomes -8b+1-4b^3
then eliminate the rest with addition and subtraction
6b^3 - 4b^3 = 2b^3
5b - 8b = -3b
-8 + 1 = -7