Ответ:
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а) x^2 - 10x - 25 - 16 = x^2 -10x -9
b) b^2 + 14b + 49 - 9 = b^2 +14b +40
B) 25 - 9 - 6x + x^2
г) 81 - a^2 +14a +49
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Ответ:
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Ответ:
а) x^2 - 10x - 25 - 16 = x^2 -10x -9
b) b^2 + 14b + 49 - 9 = b^2 +14b +40
B) 25 - 9 - 6x + x^2
г) 81 - a^2 +14a +49