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2a+6b-3(a+3b) raised to the power of 2
solve with steps

  • Mathmatics -

    First simplify given expression
    2a+6b-3(a+3b).... first remove parentheses
    =2a+6b-3a-9b .... group like terms
    =2a-3a +6b-9b .... sum like terms

    Square expression
    [-(a+3b)]^2 .... ^2 means raise to 2nd power
    =(-1)^2 (a+3b)^2
    =(a+3b)^2 .... use identity (x+y)^2=x^2+2xy+y^2

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