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20-09-2016
Mathematics

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Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2.

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HomertheGenius HomertheGenius

21-09-2016

x = - 4; y = 3; z = 2;
2 x² - 2 z^4 + y² - x² + z^4 =
= 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 =
= 2 * 16 - 2 * 16 + 9 - 16 + 16 =
= 32 - 32 + 9 - 16 + 16 = 9

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