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donaldwilliams31
31.12.2019 •
Mathematics
Solve x2+10x=24 by completing the square. which is the solution set of the equation?
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Ответ:
(x+5)^2= 49
x+5= +-7 (plus or minus 7)
x= -7-5
x=-12
x=7-5
x=2
Final x={-12, 2}
Ответ:
we can move to the next step
take 1/2 of the linear coefient and square it
10 is the linear coefient
10/2=5, (5)^2=25
add that to both sides
x²+10x+25=24+25
factor perfect square trionmial
(x+5)²=49
squaer root both sides
remember to take positive and negative roots
x+5=+/-7
minus 7 both sides
x=-5+/-7
x=-5+7 and -5-7
x=2 annd -12
the 2 soltuions are x=-12 and 2
Ответ:
I don’t know