1
Question
Factorise:
6x2−17x−3
Factorise:
6x2−17x−3
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Solution
6x2−17x−3=6x2−18x+x−3 ⎧⎪⎨⎪⎩∵6×(−3)=−18∴−18=−18×1−17=−18+1⎫⎪⎬⎪⎭=6x(x−3)+1(x−3)=(x−3)(6x+1)
6x2−17x−3=6x2−18x+x−3 ⎧⎪⎨⎪⎩∵6×(−3)=−18∴−18=−18×1−17=−18+1⎫⎪⎬⎪⎭=6x(x−3)+1(x−3)=(x−3)(6x+1)
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