davidoj13
09.10.2019 •
Mathematics
Solve x^2+10x=24 by completing the sqaure. which is the solution set of the equation
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Ответ:
{-12, 2}
Step-by-step explanation:
x^2 + 10x = 24
Take half of the x-term coefficient and square it. Add that to both sides.
Half of 10 is 5. 5^2 = 25.
x^2 + 10x + 25 = 24 + 25
(x + 5)^2 = 49
x + 5 = +/-sqrt(49)
x + 5 = 7 or x + 5 = -7
x = 2 or x = -12
{-12, 2}
Ответ:
3 ounces
Step-by-step explanation: