Question: (3) Remove the brackets and simplify, a 7x(2x-1)=5(3x-9) b a(2a+b)-2b(a+5b)(4) Expand the following

(3) Remove the brackets and simplify, a 7x(2x-1)=5(3x-9) b a(2a+b)-2b(a+5b)(4) Expand the following

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