Zapisz w jak najprostrzej postaci i użyj wzrów skróceonego mnożenia a.(3x+2)do potegi2= b.(2x-1)potega2-2x+4xpotega2= c.(3x+1)potega2+(3x-1)potega2= d.(2x+1)potega2-(2x-1)potega2= e.(61+3)potega2+36xpotega2-71xpotega2+4=

a.(3x+2)do potegi2= (3x +2)² =(3x +2)(3x +2) = 9x² +12x +4 b.(2x-1)potega2-2x+4xpotega2= (2x -1)² -(2x +4x)² ? c.(3x+1)potega2+(3x-1)potega2= (3x +1)² + (3x -1)² = = [(3x+1)-(3x-1)]*[ (3x +1)+(3x -1)] = [ 3x +1 -3x +1] *[ 3x +1 +3x -1]= = [ 2]*[6x] = = 12x a = (3x+1) b = (3x-1 ) a² -b² = (a -b )( a + b) d.(2x+1)potega2-(2x-1)potega2= = (2x+1)² - (2x -1)² = = [(2x+1) -(2x-1)]*[ (2x +1) +(2x -1)]= = [2x +1 -2x +1] *[ 2x+1+2x -1)]= =[ 2]*[4x]= = 8x e.(61+3)potega2+36xpotega2-71xpotega2+4= (61+3)² + 36x² -71x² +4 = gdzieś w pierwszej części brakuje niewiadomej x (61 +3)²