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The tangent to y=ax^2 + bx+7/2 at (1, 2...

The tangent to `y=ax^2 + bx+7/2` at `(1, 2)` is parallel to the normal at the point `(-2,2)` on the curve `y=x^2 + 6x + 10` , Find the value of `a` and b`.

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