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kostichevs
@kostichevs
August 2022
1
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Помогите, пожалуйста, разобраться, как мы находим общий знаменатель при разных знаках.
[tex] \frac{49c^{2}}{(b-7c)^{2} } - \frac{b^{2} }{(7c-b)^{2}} [/tex]
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ndusha
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(в-7с)²=(7с-в)²
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(в-7с)²=(7с-в)²