Ax+by=c help!?

what do the variables represent in ax+by=c?





also, how do you write in correct format x%26gt;14 or x%26gt;20? is it 14%26lt;x%26gt;20? or sumthing else?





also,


simplify the following:





1. (-2x^2y)^2 (-2x^2y)^3


2. [6(x-1)^2] / [18(x-1)^3]


3. 8x^-2


4. {[x^2] / [y^3]}^-3


5. (2x^-2) / [(4y)^-3]


6. (x^2-4) / (2x-4)





Factor the following completely:





7. 9-x^2


8. 4x^3 + 8x^2 +4x


9. 3x^2 - 48y^2


10. 4x^2 + 20xy +25y^2


11. x^2+5x+84


12. 30a^2 - 5a -5


13. p^2-2p- pt +2t


14. 3x^2 - 2xy +6x -4y





Solve:





15. x^2-x-72=0


16. x^3-9x=0


17. x^2-x-6=0





i no its super long, but PLZZZZ help me i really need help SHOW ALL THE WORK PLZ. i am trying to learn how to do this stuff. :( crazy hard for me

Ax+by=c help!?
i dont understand the ax+by= c


i know that is linear equation in standard form


x is input, y= output


youcan find x,y -intercept


make sure u typed it right.





x%26gt;14 or x%26gt;20 you can not write 14%26lt;x%26gt; 20


you need to write on separate part like the first time you have





if the problem wants you to combine 2 of them together then answer is x%26gt; 20





1.(-2x^2y)^2 (-2x^2y)^3 did you mean multiplication here? then





4x^4y^2 *(-8x^6y^3)


-32x^10y^5





2. . [6(x-1)^2] / [18(x-1)^3]


[6(x-1)^2 ]/[ 18(x-1)^2 *(x-1)]


1/[3(x-1)]





3. 8x^-2


8/x^2





4. {[x^2] / [y^3]}^-3


x^-6/ y^-9


y^9 / x^6





5.(2x^-2) / [(4y)^-3]





(2/x^2)/[ 4^-3 *y^-3]


(2/x^2)/[ 1/(64y^3)]


128y^3 / x^2





6. (x^2-4) / (2x-4)


(x-2)(x+2) /[2(x-2)]


(x+2)/2





7. 9-x^2


(3-x)(3+x)


8.4x^3 + 8x^2 +4x


4x(x^2 +2x+1)


9. 3x^2-48y^2


3(x^2-16y^2)





10.


4x^2+20xy+25y^2


(2x+5y)^2


(2x+5y)(2x+5y)





11. x^2+5x+84


can not factor i think you typed wrong that should be - 84, not pluse 84


x^2+5x-84


(x+12)(x-7)





12. 30a^2 -5a-5


5( 6a^2 -a-1)


5(2a-1)(3a+1)





13.p^2-2p- pt +2t


p(p-2) -t(p -2)


(p-2)(p-t)





14. 3x^2-2xy+6x-4y


x(3x-2y) +2(3x-2y)


(3x-2y)(x+2)





15. x^2-x-72=0


(x-9)(x+8)=0


x-9=0 or x+8=0


x=9 or x= -8





16. x^3 -9x=0


x(x^2-9)=0


x= 0, x^2-9=0


x=0, x^2=9


x=0, x= -3, x= 3


17. x^2-x-6=0


(x-3)(x+2)=0


x-3=0 or x+2=0


x=3 or x =-2





that is long problem i cant guarantee to be always correct plz check the answer before writing down .