** Final Answer

$x=\sqrt{\left(\frac{864}{5}\right)},\:x=-\sqrt{\left(\frac{864}{5}\right)}$

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**** Step-by-step Solution **

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1

Multiply $8$ times $2$

$\frac{16\cdot -49}{5}=4^2-x^2$

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$\frac{16\cdot -49}{5}=4^2-x^2$

Learn how to solve problems step by step online. Solve the quadratic equation (8*2*-49)/5=4^2-x^2. Multiply 8 times 2. Multiply 16 times -49. Divide -784 by 5. Calculate the power 4^2.

** Final Answer

$x=\sqrt{\left(\frac{864}{5}\right)},\:x=-\sqrt{\left(\frac{864}{5}\right)}$

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