Ответ:
1) 441
2) 1
Объяснение:
1)
[tex] {b}^{2} + 30b + 225[/tex]
Подставляем значение b = 6
[tex] {6}^{2} + 30 \times 6 + 225 = 36 + 180 + 225 = 441[/tex]
2)
[tex] {100a}^{2} + 60ab + {9b}^{2} [/tex]
a = 0.8
b = -3
[tex]100 \times {0.8}^{2} + 60 \times 0.8 \times ( - 3) + 9 \times {( - 3)}^{2} = 64 - 144 + 81 = 1[/tex]
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Answers & Comments
Ответ:
1) 441
2) 1
Объяснение:
1)
[tex] {b}^{2} + 30b + 225[/tex]
Подставляем значение b = 6
[tex] {6}^{2} + 30 \times 6 + 225 = 36 + 180 + 225 = 441[/tex]
2)
[tex] {100a}^{2} + 60ab + {9b}^{2} [/tex]
a = 0.8
b = -3
[tex]100 \times {0.8}^{2} + 60 \times 0.8 \times ( - 3) + 9 \times {( - 3)}^{2} = 64 - 144 + 81 = 1[/tex]