uporządkuj jednomiany :
-4xyx(kwadrat)y(kwadrat)(-3x)x(sześcian)y(kwadrat) =
(-x)(-x)(-15)(-x)(-2)kwadrat x(sześcian) =
(-7)ab(kwadrat)c(sześcian) * (-2)a(sześcian)bc(kwadrat)(-0,2) =
oblicz wartość liczbową wyrażenia :
2a(kwadrat) - 3a+4a ( dane : a= 2 )
3xy-4 (x+y)= (dane : x= 2 y= -3 )
(3x -6y) * (4y - 2x(kwadrat) ) = (dane x=2 y= -2 )
7ac + 4ac(kwadrat)-3+3c(kwadrat)= ( dane : a= 1 c=2 )
4a-4b-3(a-2b)= (dane : a= -2 b=-3 )
6x * 3y-3
----------------- = ( dane : x=2 y = -2 )
( x - y )
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-4xyx²y²(-3x)x³y² = 12x⁷y⁵
(-x)(-x)(-15)(-x)(-2)² x³ = 30x³
(-7)ab²c³ * (-2)a³bc²(-0,2) = -2,8a⁴b³c⁵
2a² - 3a+4a=2a²+a = 2*2²+2=8+2=10
3xy-4 (x+y)=3xy - 4x - 4y = 3*2*(-3)-4*2 - 4 *(-3) = -18 - 8 + 12 = -14
(3x -6y) * (4y - 2x² ) =12xy - 6x³ - 24y² +12x²y = 12*2*(-2) - 6*2³ -24*(-2)² +12*2²*(-2) = -48 - 48 - 96 -96 = -288
7ac + 4ac²-3+3c²=11ac+3c²-3 = 12*1*2 + 3*2² - 3 = 24 + 12 - 3 = 33
4a-4b-3(a-2b)=4a - 4b - 3a + 6b = a + 2b= -2 + 2*(-3)= -2 -6=-8
6x * 3y-3 6*2-3*(-2)-3 12+6-3 15
----------------- = --------------------=-------------=------- =3¼
( x - y ) 2-(-2) 2+2 4