Doprowadź do najprostszej postaci wyrażenia;
a] 3( x- 2y) + 5( 2x- y)
b] 3a - ( 4b + 7 +5a ) - 7( 2a+ 5b)
c] 3,5x( 8y-2z) - 2,5y( 4x+6z) - 10xz
d] 5a(-4b + 2) + 2b( 6a - 3) - ( a - 4b
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A)3(x-2y)+5(2x-y)= 3x - 6y + 10x-5y= 13x-11y
B)3a-(4b+7+5a)-7(2a+5b)= 3a- 4b-7-5a-14a-35b=-39b-16a-7
C)3,5x(8y-2z)-2,5y(4x+6z)-10xz=28xy-7xz-10xy-15yz-10xz=18xy-17xz-15yz
D)5a(-4b+2)+2b(6a-3)-(a-4b)=-20ab+10a+12ab-6b-a+4b=-8ab+9a-2b