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(х+1)^2 - 16 =
a^2 -12a + 36 =
16m^2 +24mn + 9m^2 =
(х+1)^2 - 16 =
a^2 -12a + 36 =
16m^2 +24mn + 9m^2 =
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Answers & Comments
(х+1)² - 16 = (х+1)² - 4² = (x + 1 - 4)(x + 1 + 4) = (x - 3)(x + 5)
a² -12a + 36 = a² -2·6·a + 6² = (a - 6)²
16m² +24mn + 9n² = (4m)² +2·4m·3n + (3n)² = (4m + 3n)²
(х-3)(х+5)
а²-12а+36=а²-2*6*а+6²=(а-6)²=(а-6)(а-6)
16m²+24mn+9n²=(4m)²+2*4m*3n+(3n)²=
(4m+3n)²=(4m+3n)(4m+3n)
я думаю 9n²надо