(2y2+3y-1)(y2+4y+5)
use distributive property
7 years ago
2y2 * y2 + 2y2 * 4y + 2y2 * 5 + 3y * y2 + 3y * 4y + 3y * 5 - 1 * y2 - 1 * 4y -1 * 5
= 2y4 + 8y3 + 10y2 + 3y3 + 12y2 + 15y - y2 - 4y -5
= 2y4 + 11y3 + 21y2 + 11y - 5
7 years ago
Answered By Piravinthan S
2y2 * y2 + 2y2 * 4y + 2y2 * 5 + 3y * y2 + 3y * 4y + 3y * 5 - 1 * y2 - 1 * 4y -1 * 5
= 2y4 + 8y3 + 10y2 + 3y3 + 12y2 + 15y - y2 - 4y -5
= 2y4 + 11y3 + 21y2 + 11y - 5