How do you solve $2 z^{2} - 16 z - 1768 = 0$ $2z^2 - 16z - 1768 = 0$ by completing the square?

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How do you solve $2 z^{2} - 16 z - 1768 = 0$ $2z^2 - 16z - 1768 = 0$ by completing the square?

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Answer 1 · 2016-04-21T14:39:00

Dividing the given eq by 2
$z^{2} - 2 \cdot z \cdot 4 + 4^{2} - 16 - 884 = 0$ $z^2-2*z*4+4^2-16-884=0$
$\Rightarrow {(z - 4)}^{2} = 900 = 30^{2}$ $=>(z-4)^2=900=30^2$
$: . z = 4 + 30 = 34 and z = - 30 + 4 = - 26$ $: .z=4+30=34 and z=-30+4=-26$

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How do you solve $2 z^{2} - 16 z - 1768 = 0$ $2z^2 - 16z - 1768 = 0$ by completing the square?

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How do you solve 2z^2 - 16z - 1768 = 02z2−16z−1768=02z^2 - 16z - 1768 = 0 by completing the square?

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How do you solve $2 z^{2} - 16 z - 1768 = 0$ $2z^2 - 16z - 1768 = 0$ by completing the square?