Question

Add the following expressions by horizontal method.
(4n⁴+3n³-7) and (5n³-2n²-6)​

Answer 1

$( {4n}^{4} + {3n}^{3} - 7) + ( {5n}^{3} - {2n}^{2} - 6) \\ {4n}^{4} + {3n}^{3} - 7 + {5n}^{3} - {2n}^{2} - 6 \\ {4n}^{4} + {3n}^{3} + {5n}^{3} - {2n}^{2} - 7 - 6 \\ {4n}^{4} + {8n}^{3} - {2n}^{2} - 13.$

may its helpful for you :)