Algebra

Quantitative Aptitude (CGL)

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$\left ( a+b-c+d \right )^{2}-\left ( a-b+c-d \right )^{2} = ?$

This questions was previously asked in

SSC CGL 3rd March 2020 Shift-3

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4a(b + d − c)

2a(a + b − c)

2a(b + c − d)

4a(b − d + c)

Explanation:

= 4a(b - c + d)

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