# math

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what is the solution sets of the following
a) 2x^-7x-5
b)5y^-16y+3
c)10x^+5y-6
d)10x^-13x+4
e)12y^-11y-5
f)10c^-21c+9
g)3m^+5m-2

• math -

Are these equations equal to zero?

If so, then I noticed that each one factors quite easily.
I will do the last one

g)
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.

e.g. if m = -2
LS = 3(4) + 5(-2) - 2
= 12 - 10 - 2
= 0
= RS
so my answer of m=-2 is correct

• math -

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

• Algebra 2 -

Complete the square to solve -x^2-7x+6=-2x^2

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