[tex](x - 2)(x + 2) - (x - 3) {}^{2} = 5 \\ x {}^{2} - 4 - ( {x}^{2} - 6x + 9) = 5 \\ {x}^{2} - 4 - {x}^{2} + 6x - 9 = 5 \\ 6x = 5 + 13 \\ 6x = 18 \\ x = 18 \div 6 \\ x = 3[/tex]
Объяснение:
[tex](x - 2)(x + 2) - (x - 3) ^{2} = 5[/tex]
[tex] {x}^{2} - 4 - ( {x}^{2} - 6x + 9) = 5[/tex]
[tex] {x}^{2} - 4 - {x}^{2} + 6x - 9 = 5[/tex]
[tex] - 13 + 6x = 5[/tex]
[tex]6x = 5 + 13[/tex]
[tex]6x = 18[/tex]
[tex]x = 18 \div 6[/tex]
[tex]x = 3[/tex]
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Answers & Comments
[tex](x - 2)(x + 2) - (x - 3) {}^{2} = 5 \\ x {}^{2} - 4 - ( {x}^{2} - 6x + 9) = 5 \\ {x}^{2} - 4 - {x}^{2} + 6x - 9 = 5 \\ 6x = 5 + 13 \\ 6x = 18 \\ x = 18 \div 6 \\ x = 3[/tex]
Объяснение:
[tex](x - 2)(x + 2) - (x - 3) ^{2} = 5[/tex]
[tex] {x}^{2} - 4 - ( {x}^{2} - 6x + 9) = 5[/tex]
[tex] {x}^{2} - 4 - {x}^{2} + 6x - 9 = 5[/tex]
[tex] - 13 + 6x = 5[/tex]
[tex]6x = 5 + 13[/tex]
[tex]6x = 18[/tex]
[tex]x = 18 \div 6[/tex]
[tex]x = 3[/tex]