Oblicz
-3(2a-1a^+5)-1/2a(4a^-3a-6) dla a= -1/2
-2b(-3/4b-4)+5(1/10-2b^) dla b = -2
(a-b)*1/2=(2a+3b)*3/4 dla a=1 dla b =-1/2
*-razy
^-potęga do 2
1/2-ułamek jedna druga
proszę o pomoc
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2.-2(-2)(-3/4(-2)-4)+5(1/10-2(-2)KWADRAT=4(-6)+5(-7 I 9/10)=-24-39 I 1/2=-731/2 1.-3(-1-1/4+5)+1/4(-1+1.5-6)=3+1 I 3/8=4 I 3/8 3.(1--1/2)RAZY1/2=2-3/2 RAZY3/4 3/4=1/2 RAZY 3/4 ,3/4=3/8 L NIE ROWNA SIE PRAWEJ