Bonsoir,
2−2(−2x+1)(−2x−2)−4(3x+2)(2x+3)
= 2 - (-4x + 2)(-2x - 2) - (12x + 8)(2x + 3)
= 2 - (8x² + 8x - 4x - 4) - (24x² + 36x + 16x + 24)
= 2 - 8x² - 8x + 4x + 4 - 24x² - 36x - 16x - 24
= -32x² - 56x - 18
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Bonsoir,
2−2(−2x+1)(−2x−2)−4(3x+2)(2x+3)
= 2 - (-4x + 2)(-2x - 2) - (12x + 8)(2x + 3)
= 2 - (8x² + 8x - 4x - 4) - (24x² + 36x + 16x + 24)
= 2 - 8x² - 8x + 4x + 4 - 24x² - 36x - 16x - 24
= -32x² - 56x - 18