Question

Factor completely 3x2 + 9x − 54.

Answer 1

3x2+9x-54

6+9x-54

6-54+9x

-48+9x

Answer 2

3(x+6)(x-3)

Explanation:

3x^2+9x-54

3(x^2+3x-18)

3[(x^2-3x+6x-18)]

3[x(x-3)+6(x-3)]

3[(x+6)(x-3)]

3(x+6)(x-3)