Practice problem
What is the sum of the polynomials 4x3+8x2−x+194x^{3}+8x^{2}-x+194x3+8x2−x+19 and 7x4+2x3−8x2+7x−57x^{4}+2x^{3}-8x^{2}+7x-57x4+2x3−8x2+7x−5?
−7x4+2x3+16x2−8x+24-7x^{4}+2x^{3}+16x^{2}-8x+24−7x4+2x3+16x2−8x+24
7x4+6x3+6x+147x^{4}+6x^{3}+6x+147x4+6x3+6x+14
6x3+6x+146x^{3}+6x+146x3+6x+14
−7x4+6x3+6x+14-7x^{4}+6x^{3}+6x+14−7x4+6x3+6x+14
Type a concept, like “slope” or “photosynthesis”.