X square + x - 306 = 0 factorisation
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Xsq+ 18x-17x-306=0
X(X+18) - 17(X+18)=0
(X+18)(X-17)=0
For factorising
X+18=0
X= -18
and,
X-17=0
X=17..........
X(X+18) - 17(X+18)=0
(X+18)(X-17)=0
For factorising
X+18=0
X= -18
and,
X-17=0
X=17..........
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