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Evaluate the following expression using the values given. Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2.
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-8-16+6+8+8
-24+21
the answer is -3
got it?
the answer is 9 because after putting values u got 32 -32 + 9 -16 +16 so 32 and 16 cancel out then 9 will be remaining
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\[2x^2 - 2z^4 + y^2 - x^2 + z^4\Big|\quad x = -4,\quad y = 3,\quad z = 2\\=2(-4)^2 - 2(2)^4 +(3)^2 - (-4)^2 + (2)^4\\= 2\times16-2\times16+9-16+16\\=\dots\]
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