Simplify the expression. Use standard polynomial format.
x(2x + 3) + (x - 3)(x - 4)

x(2x + 3) + (x - 3) (x - 4) = 3x²- 4x + 12

Step-by-step explanation:

Expand:

x(2x + 3): 2x² + 3x

2x² + 3x + (x - 3) (x - 4)

Expand:

(x - 3) (x - 4):  x²- 7x + 12

2x² + 3x + x²- 7x + 12

Simplify:

2x² + 3x + x² - 7x + 12:  3x² - 4x + 12

= 3x² - 4x +12

step-by-step explanation:

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