Question

Expand, reduce and order (3x+2)²-(x-2)²
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Answer 1

8x² + 16x

Explanation:

(3x + 2)² - (x - 2)² =

= 9x² + 12x + 4 - (x² - 4x + 4)

= 9x² + 12x + 4 - x² + 4x - 4

= 8x² + 16x

= 8x(x + 2)