Question

2xa(-4xb - 2x 3 + 5x)

Answer 1

Answer:

-2x2a • (2x2 + 4b - 5)

Step-by-step explanation:

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 2xa • ((-4xb -  2x3) +  5x)

Step  2  :

Step  3  :

Pulling out like terms :

3.1     Pull out like factors :

  -2x3 - 4xb + 5x  =   -x • (2x2 + 4b - 5)  

Trying to factor a multi variable polynomial :

3.2    Factoring    2x2 + 4b - 5  

Try to factor this multi-variable trinomial using trial and error  

Factorization fails

Multiplying exponential expressions :

3.3    x1 multiplied by x1 = x(1 + 1) = x2

Final result :

 -2x2a • (2x2 + 4b - 5)