2. While multiplying two algebraic expressions, Paheli wrongly calculated the product as
(4a - 5b)(2a + 7)
= 4a (2a + 7) – 5 (2a + 7)
= 8a²+ 74 - 10a + 7
= 8a²+ 3a + 7
Find her mistakes and rectify them to get the correct answer
Answers
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Answer:
8a^2 + 28a - 10ab - 35b
Step-by-step explanation:
here, it is given as :
(4a-5b)(2a+7)
= 4a(2a+7)-5b(2a+7)
= 8a^2+28a -10ab -35b is the correct answer
hope it helps
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