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Polynomials — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsPolynomials1 Mark
Question
Factorise:
2x2 - 7x - 15
✓

Answer

2x2 - 7x - 15 = 2x2 - 10x + 3x - 15
= 2x(x - 5) + 3(x - 5) = (2x + 3)(x - 5) [by splitting middle term]

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