Question

12x-[3x²+5x-{7x²-(4-3x-x³)+6x³}-3x]​

Answer 1

Answer:

3x3 + 3x2 + 18x - 4

Step-by-step explanation:

Step 1 :

Equation at the end of step 1 :

12x-((((3•(x3))+(5•(x2)))-(((7•(x2))-((4-3x)-(x2)))+(2•3x3)))-3x)

Step 2 :

Equation at the end of step 2 :

12x-((((3•(x3))+(5•(x2)))-((7x2-(-x2-3x+4))+(2•3x3)))-3x)

Step 3 :

Equation at the end of step 3 :

12x-((((3•(x3))+5x2)-(6x3+8x2+3x-4))-3x)

Step 4 :

Equation at the end of step 4 :

12x - (((3x3 + 5x2) - (6x3 + 8x2 + 3x