ramentome7542
11.05.2021 •
Mathematics
Which of the following would best be solved using completing the square?
5x^2+7x=12
X^2+4x-21=0
x^2=81
2x^3-12x^2+5x-30=0
Solved
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Ответ:
Step by step exploration
x^2+4x-21=0
x^2+4x+4-25=0
(x+2)^2-25=0
(x+2)^2=25
X+2=+OR-5
x=-7 or x=3
Ответ:
the line of slope of 3/2
Step-by-step explanation:
triangle slope of the median 1/2