Question

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Answer 1

Answer:

$16$

Step-by-step explanation:

${x}^{2} - 8x + c$

${x}^{2} + c - 8x$

To find the c value $c = ( \frac{b}{2})^{2}$ , divide the coefficient of x by 2 and square the result.

$( - 1 \times 4 {)}^{2}$

$( - 4 {)}^{2}$

$16$

Hope it is helpful....