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Air Pollution Every year on 5th June we celebrate World Environment Day. We talk about keeping the environment clean on that day b...
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In math questions answers each question is solved with an explanation: A. Which number is greater than 4? (a) 5 (b) -51 (c) -9 (d) -20 The...
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30 Math Word Problems Which are Categorized by Lesson: 1. ADDITION: a. Adding 10: Ariyan was playing basket-ball. 1 of his sh...
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a2 – b2 = (a – b)(a + b) (a + b) 2 = a 2 + 2ab + b 2 a 2 + b 2 = (a + b) 2 – 2ab (a – b) 2 = a 2 – 2ab + b 2 (a + b + c) 2 = a 2 +...