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1-4x-1+16X
12X
12*(-1)=-12
dla x = -1
20*(-1)kwadrat - 4 * (-1) = 20*1-(-4) = 20 +4 = 24
(1-2*(-1))kwadrat - (1+4*(-1)) (1-4*(-1))= (1+2)kwadrat - (1-4) (1+4)=
= 3kwadrat- (-3)*5= 9 +15=24
p*a+q:100*b