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What is x2 5x-25?

Updated: 4/28/2022
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14y ago

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x2 + 5x - 25 is a polynomial that can't be factored. If however it has a definite value, then the value of x can be calculated.

x2 + 5x - 25 = c

x2 + 5x + 25 = c - 50

(x + 5)2 = c - 50

x + 5 = ±(c - 50)1/2

x = ±(c - 50)1/2 - 5

So if c = 0, x would be equal to both 5i√2 - 5 and -(5i√2 + 5)

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