Answers

2014-02-04T17:26:39+08:00
3x multiply by 4x = 12x
4x multiply by 8 = 32x
-2 multiply by 3x = - 6x
-2 multiply by 8 = - 16

add 12x + 32x because they are similar so the answer is 44x² and add it to - 6x = 38x and bring down - 16

answer :  38x  -  16
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