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x2 - 10x + 25 = 64 Or x2 - 10x + 25 = 64?

If the first, move all over to 1 side; x2 - 10x + 25 - 64 = 0

x2 - 10x + -39 = 0

Then make it into quadratic equations; (x - 13)(x + 3) = 0

Therefore x = 13 or x = -3.

If the second, 8x = -39

-39/8 = -9.75 = x

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13y ago
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Q: How do you solve x2-10x plus 25 equals 64?
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