Question

Simplify: 3x2 – 2x(x – 3) + 3x(2x + 3).​

Answer 1

Answer:

3x2 - 2x2 + 6x + 6x2 +9x

7x2 + 15x (taking x common)

x(7x + 15)

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Answer 2

Answer:

3×2- 2x(x-3) + 3x(2x+3)

= 6-2x^2+6x+6x^2+9x

= 6x^2-2x^x+9x+6x+6

= 4x^2+15x+6