Question: Math

Factor and check: y^2 -20y+91=0

In Math | Asked by AnneS2
Answers

y^2 -20y+91=0

(y     )(y    )   (   -13)(   -7)=0

(y-13) (y-7) = 0

Check:

(y-13) (y-7) = 0

(y)(y)  (y)(-7)  (-13)(y)  (-13)(-7)=0

y^2        -7y        -13y      +91

y^2               -20y           +91=0

CherieS | 350 days ago