exam Maths Puzzle Numerical Ability

Please simplify
(2b-2)(4bē-2b-5)

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exam Other Question

two angles of a triangle have equal measures but the third angles measure is 36 degrees less than the sum of the other two . find the measure of each angle of the triangle The acceleration of a particle is given by a= -9sin3t cms^-2. if the initial velocity is 5 cms^-1 and the particle is 3cm to the left of the origin, find the exact displacement aft