Предмет: Алгебра, автор: alyaVoro

1)Преобразуй в многочлен −12(0,3p−t)2
2)Представь квадрат двучлена в виде многочлена
(0,8x+1,4y)2
3) Разложи на множители
(переменные вводить с латинской раскладки)
64y2+16y+1
4)Замени k одночленом так, чтобы получился квадрат двучлена
36y2−5y+k
ХЕЛП!!!!

Ответы

Автор ответа: aliyas1
0
1)
 - 12 {(0.3p - t)}^{2} = \\  =   - 12(0.09 {p}^{2}  - 0.6pt +  {t}^{2} ) =  \\  =  - 1.08 {p}^{2}  + 7.2pt - 12 {t}^{2}
2)
 {(0.8x+1.4y)}^{2}  = \\  =  0.64 {x}^{2}  + 2.24xy + 1.9 6{y}^{2}

3)
64 {y}^{2} +16y+1 = \\  =  ( {8y + 1})^{2}  = (8y + 1)(8y + 1)


4)
 36 {y}^{2}   - 5y +  {k}^{2} \\ k=   - \frac{5}{2 \times 6}  =   - \frac{5}{12}  \\  {k}^{2}  =  \frac{25}{144}
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