April 2019 1 9 Report
Resuelve\\
1.-(5b - 8b^{2} - b^{9}) - (-b ^{2} + 2b^{9} )\\
2.-(a^{2} +2a)(a-2)\\
3.-(6+2x^{2} -5x)(3x^{2} -4+2x)\\
4.- (a^{m+2} -4a^{m} -2a^{m+1} )(a^{2}-2a)\\
5.-3x^{2}+ x^{2} - 4x^{2} \\
6.-(3x^{2} )(-3x^{3} )\\
7.-(x-3)(x^{2} +3x+9)\\
8.-(2y)(y)\\
9.-(\frac{1}{3} x^{2} +2x-3)(\frac{2}{3} x^{3} -4x)\\
10.-(x-3)(x+3)
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