What must be subtracted from 19x^{4} + 2x^{3} + 30x – 37 to get 8x^{4}^{ }+ 22x^{3} – 7x – 60 ?
The required result will be
(19x^{4} + 2x^{3} + 30x – 37) – (8x^{4} + 22x^{3} – 7x – 60)
= 19x^{4} + 2x^{3}+ 30x – 37 – 8x^{4 }– 22x^{3 }+ 7x + 60
= 11x^{4} – 20x^{3} + 37x + 23