Simplify the expression: ( 5 z − 7 y ) 2 + ( 7 z + 5 y ) 2 − 49 z 2 (5z - 7y)^2 + (7z + 5y)^2 - 49z^2 ( 5 z − 7 y ) 2 + ( 7 z + 5 y ) 2 − 49 z 2

SSC SSC CGL Tier 2 Easy Basic algebra MCQ

Question

Simplify the expression:

(5z - 7y)^2 + (7z + 5y)^2 - 49z^2

$30z^2 + 83y^2$

$35z^2 + 70y^2$

$26z^2 + 82y^2$

$25z^2 + 74y^2$

algebrasimplificationidentitiespolynomials

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