How do you solve #x^ { 2} + 60= 285#?
3 Answers
subtract 60 and take the square root of 225 to get
Explanation:
This equals
Take the square root of both sides
Explanation:
#"to solve the equation for x , isolate "x^2" by"#
#"subtracting 60 from both sides"#
#x^2cancel(+60)cancel(-60)=285-60#
#x^2=225#
#color(blue)"take the square root of both sides"#
#sqrt(x^2)=+-sqrt225larrcolor(blue)"note plus or minus"#
#x=+-15" are the solutions"#
Explanation:
Our end goal is to get
To undo the exponent of
Notice, we have two solutions because taking the square root yields a positive and negative result.
Hope this helps!