7. Simplify the following algebraic expressions.
(a) 3x + 4y + 2xy + 5x – xy - 2x
(b) abc + ab + ac + ba - 2abc + bc + ba - 3ab
Answers
Answered by
5
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
Answered by
2
Answer
a)6x+4y+xy
b)-abc+ac+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+2ba+bc+ac
= -abc+bc+ac
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