stephire stephire

30-08-2020
Mathematics

contestada

If u^2-c^2=36 and u-c=6, what is u+c

Respuesta :

jimrgrant1 jimrgrant1

30-08-2020

Answer:

u + c = 6

Step-by-step explanation:

u² - c² ← is a difference of squares and factors as

u² - c² = (u - c)(u + c) = 36 , thus

6(u + c) = 36 ( divide both sides by 6 )

u + c = 6

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