Question: If y = 7 . 5 x 2 - 2 x 1 2 , then d y d x is - 2 x 2 -

If y=7.5x2-2x12, then dydx is
-2x2-3x-63
-x210x7
3x2-10x7
-3x2-10x-35
None of the shore
If y = 7 . 5 x 2 - 2 x 1 2 , then d y d x is - 2

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