lizethdominguez037
22.12.2020 •
Mathematics
Hey guys please answer if you know
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Ответ:
19
Step-by-step explanation:
note that
(a + b)² = a² + b² + 2ab , that is
a² + b² + 2ab = (a + b)² ← subtract 2ab from both sides
a² + b² = (a + b)² - 2ab
= 5² - 2(3)
= 25 - 6
= 19
Ответ:
C
Step-by-step explanation:
I have the same question and computer lol