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7. Simplify the following algebraic expressions.(a) 3x + 4y + 2xy + 5x – xy - 2x(b) abc + ab + ac + ba - 2abc + bc + ba - 3ab |
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Answer» Answer: (a)6x+4y+XY (b)-abc+2ab+ac+2ba+BC Step-by-step EXPLANATION: (a) 3x + 4y + 2xy + 5x – xy - 2x =3x+5x-2x+4y+2xy-xy =6x+4y+xy (b) abc + ab + ac + ba - 2ABC + bc + ba - 3ab =abc-2abc+ab-3ab+ac+ba+ba+bc =-abc+2ab+ac+2ba+bc |
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