Question

Factorise: y2-7y = 12 means ysquare-7square = 12​

Answer 1

Step-by-step explanation:

y square-7y-12=0

y2 -4y-3y-12=0

y (y-4)+3 (y-4)

(y+3) (y-4)

y+3=0 y-4=0

y= -3 y= -4

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