Coscutt
04.12.2019 •
Mathematics
What is the answer for
r(x)=-x–7
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Ответ:
r(x) = -7
Step-by-step explanation:
r(x) = -x - 7
+ 7 + 7
7 = -x
÷ -x ÷ -x
7/-1 = x
-7 = x
Ответ:
a. x equals 5 plus or minus the square root of 33, all over 2
Step-by-step explanation:
x = (5 +- √25+8)/2 = (5 +- √33)/2
sounds like x equals 5 plus or minus the square root of 33, all over 2 to me