(-20+y)(y+8)+75
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![(-20+y)(y+8)+75](/uploads/image/z/5508398-38-8.jpg?t=%28-20%2By%29%28y%2B8%29%2B75)
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(-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)