(-20+y)(y+8)+75

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/06 08:15:10
(-20+y)(y+8)+75
xa 0 Fk(ºEHq#7;N’) j%V@Ҋ0i!_nvճͿ ]~EhvLqG1<aau]9_W<}4Tuk8AšJ-!G414Jf0SHL L3>Rj

(-20+y)(y+8)+75
(-20+y)(y+8)+75

(-20+y)(y+8)+75
(-20 + y)(y + 8) +75
= y² -20y + 8y -160 + 75
= y² - 12y - 85
= (y + 5)(y - 17)

(-20+y)(y+8)+75
=y²-12y-85
=(y-17)(y+5)

y^2-12y+160-75=(y-17)*(y+5)

(-20+y)(y+8)+75
=-20y-160+8y+y^2+75
=y^2-12y-85
=(y-17)(y+5)