How do you solve #2x^2 + 10 =210#?
1 Answer
Apr 11, 2018
Explanation:
#"subtract 10 from both sides"#
#rArr2x^2=200#
#"divide both sides by 2"#
#rArrx^2=100#
#color(blue)"take the square root of both sides"#
#rArrx=+-sqrt100larrcolor(blue)"note plus or minus"#
#rArrx=+-10#
