Объяснение:
[tex]x^{2} +16x-25[/tex][tex]D=b^{2} -4ac=16^{2} -4(-25)=256+100=356[/tex][tex]x_{1} =\frac{-b-\sqrt{d} }{2a} =\frac{-16-2\sqrt{89} }{2}=-8-\sqrt{89}[/tex][tex]x_{2} =\frac{-b+\sqrt{d} }{2a} =\frac{-16+2\sqrt{89} }{2}=-8+\sqrt{89}[/tex][tex]x_{1}=-8+\sqrt{89}[/tex][tex]x_{2}=-8-\sqrt{89}[/tex]
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Объяснение:
[tex]x^{2} +16x-25[/tex]
[tex]D=b^{2} -4ac=16^{2} -4(-25)=256+100=356[/tex]
[tex]x_{1} =\frac{-b-\sqrt{d} }{2a} =\frac{-16-2\sqrt{89} }{2}=-8-\sqrt{89}[/tex]
[tex]x_{2} =\frac{-b+\sqrt{d} }{2a} =\frac{-16+2\sqrt{89} }{2}=-8+\sqrt{89}[/tex]
[tex]x_{1}=-8+\sqrt{89}[/tex]
[tex]x_{2}=-8-\sqrt{89}[/tex]