Ответ:
[tex](0,2x+1)^{2} +(0,2x+1)(1-0,2x) = \\ ( \frac{1}{5} x + 1)^{2} + (1 + 0.2x) \times (1 - 0.2x) = \\ \frac{1}{25} {x}^{2} + \frac{2}{5} x + 1 + 1 - 0.2^{2} \times {x}^{2} = \\ \frac{1}{25} {x}^{2} + \frac{2}{5} x + 1 + 1 - ( \frac{1}{5} )^{2} \times {x}^{2} = \\ \frac{1}{25} {x}^{2} + \frac{2}{5} x + 1 + 1 - \frac{1}{25} {x}^{2} = \\ \frac{2}{5} x + 1 + 1 = \frac{2}{5} x + 2 = 0.4x + 2[/tex]
0,4х+2
Пошаговое объяснение:
(0,2x+1)²+(1+0,2х)(1-0,2x)=0,04х²+0,4х+1+1-0,04х²=0,4х+2
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Ответ:
[tex](0,2x+1)^{2} +(0,2x+1)(1-0,2x) = \\ ( \frac{1}{5} x + 1)^{2} + (1 + 0.2x) \times (1 - 0.2x) = \\ \frac{1}{25} {x}^{2} + \frac{2}{5} x + 1 + 1 - 0.2^{2} \times {x}^{2} = \\ \frac{1}{25} {x}^{2} + \frac{2}{5} x + 1 + 1 - ( \frac{1}{5} )^{2} \times {x}^{2} = \\ \frac{1}{25} {x}^{2} + \frac{2}{5} x + 1 + 1 - \frac{1}{25} {x}^{2} = \\ \frac{2}{5} x + 1 + 1 = \frac{2}{5} x + 2 = 0.4x + 2[/tex]
Ответ:
0,4х+2
Пошаговое объяснение:
(0,2x+1)²+(1+0,2х)(1-0,2x)=0,04х²+0,4х+1+1-0,04х²=0,4х+2