Let y = mx + c, m > 0 be the focal chord of y 2 = - 64x, which is tangent to (x + 10) 2 + y 2 = 4. Then, the value of 4\sqrt 2 (m + c) is equal to _____________.

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INTEGER+4 / -12021

Let y = mx + c, m > 0 be the focal chord of y² = \(-\) 64x, which is tangent to (x + 10)² + y² = 4. Then, the value of 4\(\sqrt 2\) (m + c) is equal to _____________.

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