book Maths Puzzle Numerical Ability

what is (-5y3)(-4y8)

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book Other Question

x2+2x+3=0 have to solve it by fatrisation or by completing square. from new syllabus d book 3 chapter 1 ex 1c. Use synthetic division to divide: (4x4 - 4x3 - 8x - 13) ÷ (x - 2)

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