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billy583887
03.05.2021 •
Mathematics
What is the lateral and total surface area ???
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Ответ:
Correct answer. Part A: (4 x + 3)², Part B: (2 x - 7 y) · (2 x + 7 y)
Step-by-step explanation:
Given:
This square trinomial is the complete square of the binomial whose formula
(a + b)² = a² + 2 · a · b + b²
16 x² + 24 x + 9 = (4 x)² + 2 ·(4 x) · 3 + 3² = (4 x + 3)² = (4 x + 3) · (4 x + 3)
The formula for the difference of squares is.
a² - b² = (a - b) · (a + b)
4 x² - 49 y² = (2 x)² - (7 y)² = (2 x - 7 y )· (2 x + 7 y)
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