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What is the product of (0.8m – 0.7n) and (1.5n – 1.7m)?
  • a)
    2.39 mn – 1.05 n2 – 1.36 m2
  • b)
    1.19 mn – 1.15 n2 + 1.36 m2 
  • c)
    1.39 mn – 1.05 n2 + 1.36 m2
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
What is the product of (0.8m – 0.7n) and (1.5n – 1.7m)?a)2...
(0.8m – 0.7n) (1.5n – 1.7m)
= (0.8m)(1.5n) + (0.7n) (1.7m) – (0.7n)(1.5n) – (0.8m) (1.7m)
= 1.2mn + 1.19mn –1.05n2 –1.36m2
= 2.39mn – 1.05n2 – 1.36m2
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What is the product of (0.8m – 0.7n) and (1.5n – 1.7m)?a)2.39 mn – 1.05 n2 – 1.36 m2b)1.19 mn – 1.15 n2 + 1.36 m2c)1.39 mn – 1.05 n2 + 1.36 m2d)None of theseCorrect answer is option 'A'. Can you explain this answer?
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What is the product of (0.8m – 0.7n) and (1.5n – 1.7m)?a)2.39 mn – 1.05 n2 – 1.36 m2b)1.19 mn – 1.15 n2 + 1.36 m2c)1.39 mn – 1.05 n2 + 1.36 m2d)None of theseCorrect answer is option 'A'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What is the product of (0.8m – 0.7n) and (1.5n – 1.7m)?a)2.39 mn – 1.05 n2 – 1.36 m2b)1.19 mn – 1.15 n2 + 1.36 m2c)1.39 mn – 1.05 n2 + 1.36 m2d)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the product of (0.8m – 0.7n) and (1.5n – 1.7m)?a)2.39 mn – 1.05 n2 – 1.36 m2b)1.19 mn – 1.15 n2 + 1.36 m2c)1.39 mn – 1.05 n2 + 1.36 m2d)None of theseCorrect answer is option 'A'. Can you explain this answer?.
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