Объяснение:
(9b
[tex] {(9b + 1)}^{2} [/tex]
(9x+1)(9x+1)
81x2+18x+1
81x2 +9x+9x+1
(81x2+9x)+(9x+1)
9x(9x+1)+1(9x+1)
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Объяснение:
(9b
[tex] {(9b + 1)}^{2} [/tex]
Verified answer
(9x+1)(9x+1)
Объяснение:
81x2+18x+1
81x2 +9x+9x+1
(81x2+9x)+(9x+1)
9x(9x+1)+1(9x+1)
(9x+1)(9x+1)