solve the quadratic equations by factorisation
Y2-6y-27=0
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2
Answer:
y= 9, -3
Step-by-step explanation:
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Answer:
y = 9, -3
Step-by-step explanation:
y^2-6y-27=0
y^2+3y-9y-27=0
(y^2+3y)-(9y-27)=0
y(y+3)-9(y+3)=0
(y-9) (y+3)=0
y-9=0
y = 9
y+3=0
y = -3
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