Recent content by rabihtawil

My math skills are bad, I'm just working hard to pass these classes because I'm a computer science student. i finished all my major except 3 math courses which i am having the worst experience of my life in.

Thank you so much, very appreciated!

-x9 + x = 0 x(-x8 + 1) = 0 x = 0 or x= 1 right?

-x9 + x = 0 now what?

4x3 + 4y =0 x3 + y=0 y=-x3 NOW... plugging in 4y3 + 4x =0 y3 + x=0 (-x3)3 + x = 0 Please i am stuck show me how, i know it should be factored by x but how?

4x3 + 4y =0 x3 + y=0 y=x3 NOW... plugging in 4y3 + 4x =0 y3 + x=0 (x3)3 + x = 0 now what?? how do i continue from here :S

Homework Statement how to solve this: 4x3 + 4y =0 4y3 + 4x =0 the solution is x = 0,1,-1 y = 0,-1,1 how did they bring such result :bugeye:

oh never mind i figured it out, it's a system of linear equation 2 1 3 1 2 -3 solve the system the above results will come up. thank you forum

Homework Statement i have the answer for this i just don't know how it happened Issue1: 2x+y+3=0 x= -3 Issue2: x+2y-3=0 y=3 Homework Equations How did they come up with this solution? The Attempt at a Solution I reread it & try to solve it no luck :(

Homework Statement question 1: If A is a matrix satisfying 3A^2+6A-I=0, find the inverse of A. question 2: Let A be a 3x3 matrix with 4A = A^7. Find the possible values det A. Homework Equations none The Attempt at a Solution this was a very long homework about 17 questions, i solved the...