Answered

C.
b.
a.
7x+ 5 -6-x² 8x²-1
3x4 5x7 8 + 4x
4-x
5
2x - 7
a+b
a
a-b
a
a
b
ab
b

C B A 7x 5 6x 8x1 3x4 5x7 8 4x 4x 5 2x 7 Ab A Ab A A B Ab B class=

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