Ayuda rapido por favor?

(6)

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(7)

<img src="https://tex.z-dn.net/?f=%5Cdfrac%7Bx%28x%2B5%29%7D%7Bx-3%7D%5Cgeq%200%5C%5C%20%5C%5C%20%0Ax%28x%2B5%29%28x-3%29%5Cgeq%200%5Cwedge%20x%5Cneq%203%5C%5C%20%5C%5C%0Ax%5Cin%20%5B-5%2C0%5D%5Ccup%20%5B3%2C%2B%5Cinfty%29%5Cwedge%20x%5Cneq%203%5C%5C%20%5C%5C%0A%5Cboxed%7Bx%5Cin%20%5B-5%2C0%5D%5Ccup%20%283%2C%2B%5Cinfty%29%7D" />

(8)

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