Zadania - równania kwadratowe 1.(z-4)2=(z-4)(2z-1) 2.(3p+2)2=7(3p+2) 3.(k-3)2+(k-2)2-(k-1)2=0 4.(2y-1)2-6(2y-1)+5=0 5.3x(x+2)+(2x-1)2=1-5x 6.(k+1)(k-1)+2k(2k+1)=6k2 7.(3x-2)2-x2-2x=1 8.(1-3z)2+3z-4z2=9 9.(2t-3)2=8t 10.(p+1)2=(p+2)(3-p)-2 11.(4-3x)2=16-3x2 12.(u+4)2=5(u+14) 13.w2= -8w-12 14.6x-7= -x2 15.z2-0,8z+0,12=0 16.(k-1)(k-2)=20 17.4(u2-1)=4u-1 18.(5+2x)(7-x)=(4x-3)(3x+3) 19.81-(2t-3)2=0 20.(2w-3)(w+1)-3w(w+1)=0