1.
A)11025
B)38/85
2.
A)(4 - 3b) x (16 + 12b + 9b²)B)(1+6a³) x (1 - 6a³ + 36a)
C)6(x - 2) x (x+2)
3. 10648
4.
69 - 169 + 26y² = -y²
69 - 169 + 26y = 0
26y = 100
y = 50/13
(Альтернативно)
y = 3 11/13
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Answers & Comments
1.
A)11025
B)38/85
2.
A)(4 - 3b) x (16 + 12b + 9b²)
B)(1+6a³) x (1 - 6a³ + 36a)
C)6(x - 2) x (x+2)
3. 10648
4.
69 - 169 + 26y² = -y²
69 - 169 + 26y = 0
26y = 100
y = 50/13
(Альтернативно)
y = 3 11/13