Question

(4x^3 - 5x^2 + 3) - (6x^3 + 2x^2 - x) Which of the following expressions is equivalent to the expression above?

Answer 1

Answer:

c

Step-by-step explanation

    Factoring:  2x3-5x2+7x-6

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  7x-6

Group 2:  2x3-5x2

so its c

Pull out from each group separately :

Group 1:   (7x-6) • (1)

Group 2:   (2x-5) • (x2)

Bad news !! Factoring by pulling out fails :

The groups have no common factor and can not be added up to form a multiplication.