Simplify the expression. Use the varbiables, numbers, and symbols that are shown. Drag them to the appropriate box in the polynomial. Use standard polynomial format. X (2x+3) + (x-3) (x-4)

3x² - 4x + 12

Step-by-step explanation:

This involves straightforward application of the distributive property

x (2x+3) + (x-3) (x-4)

= 2x² + 3x + x (x - 4) - 3 (x - 4)

= 2x² + 3x + x² - 4x - 3x + 12

= 3x² - 4x + 12