Question

factorize : 1+9x+27x²+28x³​

Answer 1

Answer:

STEP

1

:

Equation at the end of step 1

((9x + 1) + (27 • (x2))) + (22•7x3)

STEP

2

:

Equation at the end of step

2

:

((9x + 1) + 33x2) + (22•7x3)

STEP

3

:

Checking for a perfect cube

3.1 28x3+27x2+9x+1 is not a perfect cube

Trying to factor by pulling out :

3.2 Factoring: 28x3+27x2+9x+1

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

Group 1: 28x3+1

Group 2: 27x2+9x

Pull out from each group separately :

Group 1: (28x3+1) • (1)

Group 2: (3x+1) • (9x)