Question #4b3ff
2 Answers
Oct 11, 2017
#x=9/3#
Explanation:
Given -
#9x^2-25=0#
#9x^2=25#
#x^2=25/9#
#x=sqrt(25/9)#
#x=sqrt25/sqrt9=5/3#
#x=9/3#
Oct 11, 2017
Explanation:
This is the standard form of a quadratic equation, which we can find the roots of by using the quadratic formula.
Rewriting the equation:
Our values to plug into the formula are:
-
#a=9# -
#b=0# -
#c=-25#
The formula is:
Plugging in for the variables: