I relly need help on this 7 problems pleace help
:x
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Code:
1-
6x^2+x-2
2-
6wy-2xy+9bw-3bx
3-
__ ___ __
5./2 (7./8 +5 ./3 )
4-
x x^3
-------- ---------
x^2-16 (Divide) x^2-15x+40
5-
xyz^-1 - xz^-1
-------------------
xy^-1 - 1
6-
x-2 x-7
----- + ----- = 1
5 3
7-
x^2 - 13x= -36