Question

7. Simplify: - (3x – y)(9x2 + 3xy + y2 ) – (3x - y)3​

Answer 1

Answer:

STEP

1

:

Equation at the end of step 1

(3x + y) • ((32x2 - 3xy) + y2)

STEP

2

:

Trying to factor a multi variable polynomial

2.1 Factoring 9x2 - 3xy + y2

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

Factorization fails

Final result :

(3x + y) • (9x2 - 3xy + y2)