Answer: Area = x² + 6x + 8
Step-by-step explanation:
Area = length x width
Area = (x+2)(x+4)
Area = (x)(x) + (x)(4) + (2)(x) + (2)(4)
Area = x² + 4x + 2x + 8
Area = x² + 6x + 8
Answer:
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hope this helps
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20 to the 5th power
(b-1)²-9
= 4[(b - 1)(b - 1)] - 9
= 4[b² - b - b + 1] - 9
= 4(b² - 2b + 1) - 9
= 4b² - 8b + 4 - 9
= 4b² - 8b - 5
Hope this helps!
