Sunday

September 21, 2014

September 21, 2014

Posted by **Mohamed shiko** on Monday, January 17, 2011 at 1:31pm.

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 -
**Reiny**, Monday, January 17, 2011 at 1:43pmAre 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.

You can check your answers by subbing them back in.

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 -
**helper**, Monday, January 17, 2011 at 1:47pmyou 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 -
**Emily**, Sunday, January 8, 2012 at 10:54pmComplete the square to solve -x^2-7x+6=-2x^2

**Answer this Question**

**Related Questions**

math - what is the solution sets of the following a) 2x^2-7x-5 b) 5y^2-16y+3 c) ...

Math - Which equation describes a hyperbola? A. 2x^2 + 2x + 2y^2 - 6y - 11 = 0 B...

Math - Find the equation of the tangent line 5x^2+y^2=14 at (1,3). P.S: It's ...

Algebra 2 - "My husband's age," remarked a lady the other day, "is represented ...

math 012 - will someone please double check my answer to this problem. the ...

math - 1. Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 ...

Intermediate Algebra - Determine whether the point (1, 8) is a solution of the ...

algebra - Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 ...

how about his one - -7+ 5x = 10x-2? im not sure I know its -1, but im not sure ...

Pre-algebra - Solve. 29x – 2(9x – 0.455) = 10x + 0.525 Give us you thinking on ...