Multipliziere aus und fasse zusammen.

  1. (2ab3)(1,5a2b)\left(-2\mathrm{ab}^3\right)\cdot\left(1{,}5a^2b\right)

  2. 3x[5xy(6yx9y2)]2y(2x2)3x\left[5\mathrm{xy}-\left(6\mathrm{yx}-9y^2\right)\right]-2y\left(-2x^2\right)

  3. 10,5a3b4c:(3bc)(2)2(2ab)310{,}5\, a^3b^4c:\left(-3\mathrm{bc}\right)-\left(-2\right)^2\left(2\mathrm{ab}\right)^3

  4. (1,5u+v)(2u+5v)\left(1{,}5u+v\right)\left(-2u+5v\right)

  5. (x7)(x+4)x(2x3)\left(x-7\right)\left(x+4\right)-x\left(-2x-3\right)

  6. (12a+3b)(1,25+34)3a2a(b112b)\left(-\dfrac12a+3b\right)\left(1{,}25+\dfrac34\right)\cdot3a-2a\left(b-1\dfrac12b\right)

  7. (0,3xx+710x)(x+4)(x23x+1)2(x21)\left(0{,}3x-x+\dfrac7{10}x\right)\left(x+4\right)\left(x^2-3x+1\right)-2\left(x^2-1\right)

  8. (0,5x1)(y+23x)13(x2)x\left(0{,}5x-1\right)\left(-y+\dfrac23x\right)-\dfrac13\left(x-2\right)x

  9. 2(12a3b)+3b[0,25b(2a)]2\left(\dfrac12a\cdot3b\right)+3b\left[0{,}25b-\left(-2a\right)\right]