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I) Factorise 3x^2-13x-10
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I) Factorise 3x^2-13x-10

User Mohamed Nagieb
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⇒
3x^(2) -13x-10\\=3x^(2) -15x+2x-10\\=(3x^(2) -15x)+(2x-10)\\=3x(x-5)+2(x-5)\\=(x-5)(3x+2)

⇒The answer is (x-5)(3x+2)

User Janek
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