posted by Mohamed shiko on .
what is the solution sets of the following
Are these equations equal to zero?
If so, then I noticed that each one factors quite easily.
I will do the last one
3m^2 + 5m - 2 =0
(3m - 1)(m + 2) = 0
3m-1 = 0 or m+2 = 0
m = 1/3 or m = -2
do the others the same way.
You can check your answers by subbing them back in.
e.g. if m = -2
LS = 3(4) + 5(-2) - 2
= 12 - 10 - 2
so my answer of m=-2 is correct
you are missing the exponents
if (a) should be 2x^2 - 7x - 5
a) 2x^2 - 7x - 5
does not factor, solve by using the quadratic formula or completing the square
if you are stuck, post your work and someone will help
tutors do not do your homework
Complete the square to solve -x^2-7x+6=-2x^2