solve the following quadratic equation by factorisation method y²-16y+63=0
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(y^2)-16y+63=0
(y^2)-9y-7y+63=0
(y^2-9y)-(7y-63)=0
{y(y-9)}-{7(y-9)}=0
y(y-9)-7(y-9)=0
(y-9)(y-7)=0
y-9=0
y=0+9
y=9
y-7=0
y=0+7
y=7
I hope this helps you and please mark me the brainliast.
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Answer:
solve the following quadratic equations by factorisation i)y²-144=0
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