Find the Quotient and Remainder for the Division Problem $\left( 3 x ^ { 3 } + 10 x ^ { 2 } - 5 x - 1 \right) \div \left( x ^ { 2 } + 4 x \right)$

Short Answer

Find the quotient and remainder for the division problem. $\left( 3 x ^ { 3 } + 10 x ^ { 2 } - 5 x - 1 \right) \div \left( x ^ { 2 } + 4 x \right)$ $\text { Q :}$ __________ $\mathrm { R } :$ __________