3m(a-2b)-a+2b 2a(a+b)-4a 4a(x-y)-(x-y)

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3m(a-2b)-a+2b2a(a+b)-4a4a(x-y)-(x-y)3m(a-2b)-a+2b2a(a+b)-4a4a(x-y)-(x-y)3m(a-2b)-a+2b2a(a+b)-4a4a(x-

3m(a-2b)-a+2b 2a(a+b)-4a 4a(x-y)-(x-y)
3m(a-2b)-a+2b 2a(a+b)-4a 4a(x-y)-(x-y)

3m(a-2b)-a+2b 2a(a+b)-4a 4a(x-y)-(x-y)
3m(a-2b)-a+2b
=3m(a-2b)-(a-2b)
=(3m-1)(a-2b)
2a(a+b)-4a
=2a(a+b-2)
4a(x-y)-(x-y)
=(4a-1)(x-y)
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3m(a-2b)-a+2b
=3m(a-2b)-(a-2b)
=(a-2b)(3m-1)
2a(a+b)-4a
=2a[(a+b)-2)]
=2a(a+b-2)
4a(x-y)-(x-y)
=(x-y)(4a-1)