How do you solve the quadratic #25m^2-8=-7# using any method?

1 Answer
Sep 8, 2016

Answer:

#m = 1/5 or m = -1/5#

Explanation:

Usually you make a quadratic equation equal to 0 and then solve it by factoring, completing the square, or the formula.

However, this quadratic equation is a special case because it does not have an x-term.

Move the numbers to the right side to get:

#25m^2 = -7+8 = 1#

#(25m^2)/25 = 1/25 " "larr# divide both sides by 25

#m^2 = 1/25 " "larr" #find the square root of both sides

#m = +-sqrt(1/25)#

#m = 1/5 or m = -1/5#