Asked by Sara
The problem is… 8X^4/25-9x^2• 3X^2- 8X+5/x^2-1~4x^3/x^2+2x+1
NOTE: I used~ to equal a division symbol
So I did 2x/-(3x-5)(5+3x)•3x(x-1)-5(x-1)/(x-1)(x+1)•(x+1)^2
2x/-(3x-5)(5+3x)•(x-1)(3x-5)/(x-1)(x+1)•(x+1)^2
2x/5+3x•-1(x+1)
-2x^2+2x/5+3x
Is this correct? Thank you for checking my work
NOTE: I used~ to equal a division symbol
So I did 2x/-(3x-5)(5+3x)•3x(x-1)-5(x-1)/(x-1)(x+1)•(x+1)^2
2x/-(3x-5)(5+3x)•(x-1)(3x-5)/(x-1)(x+1)•(x+1)^2
2x/5+3x•-1(x+1)
-2x^2+2x/5+3x
Is this correct? Thank you for checking my work
Answers
Answered by
oobleck
Your use of upper- and lower-case X and weird symbols, combined with the lack of parentheses makes things very confusing and ambiguous.
Now, even though the formatting is garbled, you seem to be doing things right, till the last line, where you had
2x/5+3x•-1(x+1)
(-2x^2+2x)/(5+3x)
since you failed to distribute the - sign in 2x•-1(x+1) = 2x(-x-1) = -2x^2-2x
So, the final answer was
(-2x^2-2x)/(5+3x)
or, I would left it as
-2x(x+1)/(3x+5)
or
(-2x^2-2x)/(3x+5)
Now, even though the formatting is garbled, you seem to be doing things right, till the last line, where you had
2x/5+3x•-1(x+1)
(-2x^2+2x)/(5+3x)
since you failed to distribute the - sign in 2x•-1(x+1) = 2x(-x-1) = -2x^2-2x
So, the final answer was
(-2x^2-2x)/(5+3x)
or, I would left it as
-2x(x+1)/(3x+5)
or
(-2x^2-2x)/(3x+5)
Answered by
Sara
Thank you for your help.