itsmariahu1927
19.12.2019 •
Mathematics
Solve the equation using a method other than factoring. show all your work.
x² - 7x + 3 = 0
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Ответ:
7/2=3.5
3.5^2=12.25
add that to both sides
x²-7x+12.25+3=12.25
factor perfect square
(x-3.5)²+3=12.25
minus 3 both sides
(x-3.5)²=9.25
square root both sides
x-3.5=+/-√9.25
add 3.5 to both sides
x=3.5+/-√9.25
x=3.5+√9.25 or 3.5-√9.25
Ответ:
46 percent
Step-by-step explanation: