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600a2 - 240a (6a)(5a - 2)(20) The simplified expression for the volume of this solid is: 120a(5a - 2) 31a2 - 2a It is 18 metres from R to S. What is the value of a? Write a number only. When fully simplified, the expression: (3y2 + 4y - 6) + (6y2 + 5y - 3) becomes: 9y2 + 9y - 9 9y4 + 9y2 - 9 9y2 + 9y + 9 9y2 What is the value of the expression: 4x2 - 2x + 5, if x = -3? 35 155 47 -133 x² coefficient 3x(4 - 2x) - 4(5 + x) becomes which expression when fully simplified? x coefficient x2 x constant term |