C) Add the following: 1) 2x^2 – 3y^2 + 4z^2. 3y^2 - 4x^2 - 4z^2 and 2y^2 - 3x^2 - 4z^2 wrong answer ls will get reported pls help moderators

C) Add the following: 1) 2x^2 – 3y^2 + 4z^2. 3y^2 - 4x^2 - 4z^2 an

1.	C) Add the following: 1) 2x^2 – 3y^2 + 4z^2. 3y^2 - 4x^2 - 4z^2 and 2y^2 - 3x^2 - 4z^2 wrong answer ls will get reported pls help moderators
Answer» Step-by-step EXPLANATION:-,- = + than we plus them+,- = - so we Subtract them For more clearity SEE the above ATACHMENT

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C) Add the following: 1) 2x^2 – 3y^2 + 4z^2. 3y^2 - 4x^2 - 4z^2 and 2y^2 - 3x^2 - 4z^2 wrong answer ls will get reported pls help moderators ​

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C) Add the following: 1) 2x^2 – 3y^2 + 4z^2. 3y^2 - 4x^2 - 4z^2 and 2y^2 - 3x^2 - 4z^2 wrong answer ls will get reported pls help moderators