Combine the like terms in the expression. drag the item from the item bank to its corresponding match. −12x4 + 7x3 + 6x4 − 2x3 add answer −5x3 + 7x4 + 4x4 − 8x3 add answer −2x4 − 10x3 + 4x4 − 2x3 add answer 15x3 − 15x4 + 13x4 − x3 add answer 7x4 − 15x3 + 12x3 − 2x4 add answer11x^4 − 13x^3 14x^3 − 2x^4 2x^3 − 12x^3 5x^3 − 6x^4 5x^4 − 3x^3 don't guess!

 We will solve each expression step by step:


 Expression 1:
 -12x4 + 7x3 + 6x4 - 2x3
 x4 (-12 + 6) + x3 (7-2)
 -6x4 + 5x3
 
 5x ^ 3 - 6x ^ 4

 Expression 2:
 -5x3 + 7x4 + 4x4 - 8x3
 x4 (7 + 4) + x3 (-5-8)
 11x4 - 13x3
 
 11x ^ 4 - 13x ^ 3

 Expression 3:
 -2x4 - 10x3 + 4x4 - 2x3
 x4 (-2 + 4) + x3 (-10-2)
 2x4 - 12x3
 
 2x ^ 4 - 12x ^ 3

 Expression 4:
 15x3 - 15x4 + 13x4 - x3
 x4 (-15 + 13) + x3 (15-1)
 -2x4 + 14x3
 
 14x ^ 3 - 2x ^ 4

 Expression 5:
 7x4 - 15x3 + 12x3 - 2x4
 x4 (7 - 2) + x3 (-15 + 12)
 5x4 - 3x3
 
 5x ^ 4 - 3x ^ 3