How do you solve the quadratic 7r^2+8=281 using any method?
1 Answer
Aug 16, 2016
r=+-sqrt(39)
Explanation:
Given -
7r^2+8=281
7r^2=281-8=273
r^2=273/7=39
r=+-sqrt(39)
r=+-sqrt(39)
Given -
7r^2+8=281
7r^2=281-8=273
r^2=273/7=39
r=+-sqrt(39)