wanderspamlust wanderspamlust

08-03-2020
Mathematics

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Fill in the blanks. Please answer as shown in the boxes. Please fill out all boxes. Will mark brainiest if correct

Fill in the blanks Please answer as shown in the boxes Please fill out all boxes Will mark brainiest if correct class=

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amna04352 amna04352

08-03-2020

Answer:

(5x + 7y)² = 25x² + 70xy + 49y²

Step-by-step explanation:

(5x + 7y)² = 25x² + 70xy + 49y²

Because,

(5x + b)² = (5x)² + 2(5x)(b) + b²

2(5x)(b) = 70xy

b = 7y

b² = (7y)² = 49y²

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