WebMar 22, 2024 · Ex 2.5, 6 Write the following cubes in expanded form: (i) (2x+ 1)3 (2x + 1)3 Using (a + b)3 = a3 + b3 + 3ab (a + b) Where a = 2x & b =1 = (2x)3 + (1)3 + 3 (2x) (1) (2x + 1) = 8x3 + 1 + 6x (2x +1) = 8x3 + 1 + 12x2 + 6x = 8x3 + 12x2 + 6x + 1. Next: Ex 2.5, 6 (ii) → Ask a doubt. Chapter 2 Class 9 Polynomials. Serial order wise. WebFree Pre-Algebra, Algebra, Trigonometry, Calculus, Geometry, Statistics and Chemistry calculators step-by-step
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