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10 January, 00:50

Expand and simplify a) (x+8) (x+2) + (x+3) (x+9) b) (3y-2) (y+4) + (5y-1) (y-3)

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  1. 10 January, 04:13
    0
    A) (x+8) (x+2) + (x+3) (x+9)

    x^2+8x+2x+16+x^2+3x+9x+27

    2x^2+22x+43

    b) (3y-2) (y+4) + (5y-1) (y-3)

    3y^2+12y-2y-8+5y^2-1y-15y+3

    8y^2-6y-5
  2. 10 January, 04:43
    0
    A, x^2+11x+19

    b, 8y^2-6y-5
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