Question

Subtract 25n square + 9n-4n4from -13n square-6n-12n4

Answer 1

Answer:

25nsquare + 9n-4n4 = 25nsquare +5n*4

13nsquare-6n-12n4 -(25nsquare +5n*4)

13nsquare -6n-12n4-25nsquare-5n*4

-12nsquare-23n*16

Answer 2

Answer:

$- 13n^{2} - 6n - 12 {n}^{4} \\ - (25 {n}^{2} + 9n - 4 {n}^{4} ) \\ = - 13n^{2} - 6n - 12 {n}^{4} \\ \: \: \: \: \: - 25 {n}^{2} - 9n + 4 {n}^{4} \\ = - 12 {n}^{4} + 4 {n}^{4} - 13 {n}^{2} - 25 {n}^{2} \\ \: \: \: \: \: - 6n - 9n \\ = - 8 {n}^{4} - 38 {n}^{2} - 15n$