Answer all the questions
Q1. (2x – 4y) – (2x –y) is equal to
Q2 .5xy – ( - 2xy) is equal to
Q3. The value of (5a+3b) – (a-2b)
Q4. If A= -8x +2y and B= 6x-2y then A-B=
Q5. When - 6xy is subtracted from 10xy we get
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Answer:
ANS1. (2x-4y) - (2x-y)
=2x-4y-2x+y
=3y
ANS2. 5xy-(-2xy)
=5xy+2xy
=7xy
ANS3. (5a+3b) - (a-2b)
=5a+3b-a+2b
=4a+5b
ANS4. A=-8x+2y and B=6x-2y
A-B= (-8x+2y)-(6x-2y)
=-8x+2y-6x+2y
=-14x+4y
ANS5. 10xy-(-6xy)
=10xy+6xy
=16xy
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