A.6n-10 | B.3n+11 | C.6n-4 | D.3n+8 |
A.4b+5 | B.4b-5 | C.4b×5 |
A.a﹣b | B.x | C.ax﹣bx |
A.360+24a | B.360+a+24 | C.360-24a | D.360a÷24 |
A.12 | B.24 | C.36 |
A.b+7 | B.b+4 | C.b+3 | D.7 |
A.2ab | B.2abh | C.ab(h+2) | D.4a+4b |
A.10x-y | B.10x+y | C.x+10y |
A.50+x | B.50-x | C.50+2x | D.50-2x |
A.abc | B.ba+c | C.100c+10b+a | D.10a+b+100c |