# Ex 14.4, 7 - Chapter 14 Class 8 Factorisation

Last updated at Dec. 26, 2018 by Teachoo

Last updated at Dec. 26, 2018 by Teachoo

Transcript

Ex 14.4, 7 Find and correct the errors in the following mathematical statements. 〖"(2x)" 〗^2+ 4(2x) + 7 = 〖"2x" 〗^2+ 8x + 7 〖"(2x)" 〗^2+ 4(2x) + 7 = 〖"2x" 〗^2+ 8x + 7 Solving LHS: 〖(2𝑥)〗^2 + 4 (2x) + 7 = (2^2×𝑥^2) + (4 × 2) x + 7 = 〖4𝑥〗^2 + 8x + 7 ∴ 〖(𝟐𝒙)〗^𝟐 + 4 (2x) + 7 = 〖𝟒𝒙〗^𝟐 + 8x + 7 is the correct statement

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.