can anybody help me with this questions?

Find the equation of the tangent plane to the surface 2102 + 242+ 322 - 67 at the point (4, -2, 3) . 1. 8x + 4y + 9z = 67 2. 8x - 4y + 92 = 51 3. 2x - 2y + 32 = 67 4. 8x + 4y + 92 = 51 5. 8x - 4y + 9z = 67\fLocate and classify all the local extrema of f(x, y) = 4x' + 4y' + 12ry - 5.1. local min at (0, 0), local max at (-1, -1) 2. local min at (-1, -1), saddle at (0, 0) 3. local max at (1, 1), saddle at (0, 0) 4. local max at (-1, -1), saddle at (0, 0) 5. saddle at (-1, -1), local max at (0, 0)Find the equation of the tangent plane to the surface 2x2 + 2y? + 322 -67 at the point (4, -2, 3) . 1. 8x + 4y + 92 = 67 2. 8x - 4y + 9z = 51 3. 2x - 2y + 3z = 67 4. 8x + 4y + 9z = 51 5. 8x - 4y + 92 - 67