Mathematics, 27.06.2019 17:40 Mimical
Questões matemáticas 4) 3a- 4b ( 4 - 7a + 2b ) + b 6) 3mn ( m² + n² - m + 4n - 5 ) 8) ( x + √5 )² 9) ( 4x + 2y )² 10) (2w-1,6)² 13) (x+11)(x+18) 15) (x+4,7)(x+3,25) considere x=-4, y=48 e z=2,7 17) 2x-y+3z 18) xz+1,57 20) x³+2x²-4x
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