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simplify the expression and find its …

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simplify the expression and find its value when they is = 2 and b= -1 3a-2b-ab-(a-b+ab)+3ab+b-a

    • Posted by Pragya Ahuja 5 years, 9 months ago

    CBSE > Class 07 > Mathematics
    • 1 answers

    Arya Tiwari 5 years, 9 months ago

    3a -2b-ab-(a-b+ab)+3ab+b-a... 3x2-2x(-1)-2x(-1)= 6-(-2)-(-2)= 6+2+2=8 2-(-1)+2x(-1)=3+-2=1 3x2x(-1)+2-(-1)= 3x-2 + 3=-6+3=-3 8-1+(-3) 7+(-3) 4

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