[tex]\displaystyle\bf\\x^{2} -x-56=0\\\\D=(-1)^{2} -4\cdot(-56)=1+224=225=15^{2} \\\\\\x_{1} =\frac{1-15}{2}=\frac{-14}{2} =-7\\\\\\x_{2} =\frac{1+15}{2} =\frac{16}{2} =8\\\\\\Otvet: \ -7 \ ; \ 8[/tex]
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
[tex]\displaystyle\bf\\x^{2} -x-56=0\\\\D=(-1)^{2} -4\cdot(-56)=1+224=225=15^{2} \\\\\\x_{1} =\frac{1-15}{2}=\frac{-14}{2} =-7\\\\\\x_{2} =\frac{1+15}{2} =\frac{16}{2} =8\\\\\\Otvet: \ -7 \ ; \ 8[/tex]