Mathematics, 22.12.2020 16:50 johncena1001

Please help me simplify and find the excluded values for this equation $\frac{{x}^{2} - 16 }{9 - x} \times \frac{ {x}^{2} + x - 90 }{ {x}^{2} + 14x + 40}$

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Please help me simplify and find the excluded values for this equation...