Ответ:
А) [tex]4 {x}^{2} - 9 = 0[/tex]
[tex]4 {x}^{2} = 9[/tex]
[tex] {x}^{2} = \frac{9}{4} [/tex]
[tex] {x}^{2} = 2.25[/tex]
[tex]x = - \sqrt{ 2.25} ; \sqrt{2.25 } [/tex]
[tex]x = - 1.5; \: 1.5[/tex]
Б) [tex] - {x}^{2} + 3 = 0[/tex]
[tex] - {x}^{2} = - 3[/tex]
[tex] {x}^{2} = 3[/tex]
[tex]x = - \sqrt{3} ; \sqrt{3} [/tex]
В) [tex] - 0.1 {x}^{2} + 10 = 0[/tex]
[tex] - 0.1 {x}^{2} = - 10[/tex]
[tex]0.1 {x}^{2} = 10[/tex]
[tex] {x}^{2} = 100[/tex]
[tex]x = - 10;10[/tex]
Г) [tex] {y}^{2} - \frac{1}{9} = 0[/tex]
[tex] {y}^{2} = \frac{1}{9} [/tex]
[tex]y = - \sqrt{ \frac{1}{9} } ; \sqrt{ \frac{1}{9} } [/tex]
[tex]y = - \frac{1}{3} ; \frac{1}{3} [/tex]
Д) [tex]6 {v}^{2} + 24 = 0[/tex]
[tex]6 {v}^{2} = - 24[/tex]
[tex] {v}^{2} ≠ - 4[/tex]
Е) [tex]3 {m}^{2} - 1 = 0[/tex]
[tex]3 {m}^{2} = 1[/tex]
[tex] {m}^{2} = \frac{1}{3} [/tex]
[tex]m = - \sqrt{ \frac{1}{3} };\frac{1}{3} [/tex]
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Answers & Comments
Ответ:
А) [tex]4 {x}^{2} - 9 = 0[/tex]
[tex]4 {x}^{2} = 9[/tex]
[tex] {x}^{2} = \frac{9}{4} [/tex]
[tex] {x}^{2} = 2.25[/tex]
[tex]x = - \sqrt{ 2.25} ; \sqrt{2.25 } [/tex]
[tex]x = - 1.5; \: 1.5[/tex]
Б) [tex] - {x}^{2} + 3 = 0[/tex]
[tex] - {x}^{2} = - 3[/tex]
[tex] {x}^{2} = 3[/tex]
[tex]x = - \sqrt{3} ; \sqrt{3} [/tex]
В) [tex] - 0.1 {x}^{2} + 10 = 0[/tex]
[tex] - 0.1 {x}^{2} = - 10[/tex]
[tex]0.1 {x}^{2} = 10[/tex]
[tex] {x}^{2} = 100[/tex]
[tex]x = - 10;10[/tex]
Г) [tex] {y}^{2} - \frac{1}{9} = 0[/tex]
[tex] {y}^{2} = \frac{1}{9} [/tex]
[tex]y = - \sqrt{ \frac{1}{9} } ; \sqrt{ \frac{1}{9} } [/tex]
[tex]y = - \frac{1}{3} ; \frac{1}{3} [/tex]
Д) [tex]6 {v}^{2} + 24 = 0[/tex]
[tex]6 {v}^{2} = - 24[/tex]
[tex] {v}^{2} ≠ - 4[/tex]
Е) [tex]3 {m}^{2} - 1 = 0[/tex]
[tex]3 {m}^{2} = 1[/tex]
[tex] {m}^{2} = \frac{1}{3} [/tex]
[tex]m = - \sqrt{ \frac{1}{3} };\frac{1}{3} [/tex]