Identify Expression: Identify the expression after subtracting the second polynomial from the first.Subtract (−5v3+9v2−6v) from (−5v3−9v2+6v) by changing the signs of the second polynomial and then combining like terms.(−5v3−9v2+6v)−(−5v3+9v2−6v)= (−5v3−9v2+6v)+(5v3−9v2+6v)
Subtract Polynomials: Simplify the expression by combining like terms.Combine the terms with v3, the terms with v2, and the terms with v.(−5v3+5v3)+(−9v2−9v2)+(6v+6v)=0v3−18v2+12v
Simplify Expression: Since 0v3 is zero, it can be removed from the expression.Simplify the expression by removing the term with zero coefficient.0v3−18v2+12v=−18v2+12v
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