D=b^{2} -4ac=121-4*3*(-32)=505=>a[tex]4)-2a^{2}+9a+5=0=>D= 81-4*(-2)*5=121=>a1=\frac{-9+11}{-4}=-0,5=>a2=\frac{-9-11}{-4}=-5" alt="1) 3a^{2} - 11a - 32=0 =>D=b^{2} -4ac=121-4*3*(-32)=505=>a[tex]4)-2a^{2}+9a+5=0=>D= 81-4*(-2)*5=121=>a1=\frac{-9+11}{-4}=-0,5=>a2=\frac{-9-11}{-4}=-5" align="absmiddle" class="latex-formula">
D=81-4*(-2)*5=121a1=\frac{-9+11}{-4} = -0,5a2=\frac{-9-11}{-4}= 5" alt="-2a^{2} +9a+5=0=>D=81-4*(-2)*5=121a1=\frac{-9+11}{-4} = -0,5a2=\frac{-9-11}{-4}= 5" align="absmiddle" class="latex-formula">1=\frac{11-22,5}{6}= -1,9=>a2=\frac{11+22,5}{6} = 5,6[/tex]
D=64-4*2*7=64-56=8=>a1=\frac{8-\sqrt[]{8} }{4}=1,3=>a2=\frac{8+\sqrt[]{8} }{4} =2,7" alt="2) 2a^{2} -8a+7=0=>D=64-4*2*7=64-56=8=>a1=\frac{8-\sqrt[]{8} }{4}=1,3=>a2=\frac{8+\sqrt[]{8} }{4} =2,7" align="absmiddle" class="latex-formula">
D=49-4*2*3=25=>a1=\frac{7-5}{4} =0,5=>a2=\frac{7+5}{4} =3" alt="3) 2a^{2} -7a+3=0=>D=49-4*2*3=25=>a1=\frac{7-5}{4} =0,5=>a2=\frac{7+5}{4} =3" align="absmiddle" class="latex-formula">