Math, asked by cisjungwoo, 9 months ago

Solve by factorisation
Y2 - 7y - 30 = 0
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Answers

Answered by adamsharief3

2

30=3*10
So,
y2+3y-10y-30=0
Or
y(y+3)-10(y+3) =0
Or (y+3)(y-10)=0
Or y=-3,10
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