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dla a=-1 , b=½
b)-4×(a+b)×(2a-3b)+2×(3a-2b)×9a+4b)=-4×(2a²-3ba+2ab-3b²)+2×(3a²+12ab-2ba-8b²)=-4×(2a²-ab-3b²)+2×(3a²+10ab-8b²)=-4×[2×4-(-2)×(-0,5)-3×(-0,5)²]+2×[3×(-2)²+10×(-2)×(-0,5)-8×(-0,5)²=-4×(8-1-0,25)+2×(12+10+2)=-4×6,75+2×24=-27+48+21
dla a=-2 , b=-0,5
Myślę że ci pomogłam
po znajomości dałabyś naj....xD
Pozdro!!!!