Check sibling questions

Ex 14.4, 12 - Find and correct the errors (z + 5)^2 = z^2 + 25


Transcript

Ex 14.4, 12 Find and correct the errors in the following mathematical statements. γ€–"(z + 5)" γ€—^2= 𝑧^2 + 25 Solving L.H.S : γ€–"(z + 5)" γ€—^2 Using γ€–(π‘Ž+𝑏)γ€—^2=π‘Ž^2+𝑏^2+2π‘Žπ‘ Here a = z and b = 5 = γ€–(𝑧)γ€—^2 + γ€–(5)γ€—^2 + 2 (z) (5) = 𝑧^2 + 25 + 10z = 𝑧^2 + 10z + 25 ∴ (𝒛+πŸ“)^𝟐 = 𝒛^𝟐 + 10z + 25 is the correct statement.

Davneet Singh's photo - Teacher, Engineer, Marketer

Made by

Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.