(2x + 3)² - 3 = (2x - 4)² - 6x 4x² + 12x + 9 - 3 = 4x²- 16x + 16 - 6x 4x² + 12x + 6 = 4x² - 22x + 16
4x² + 12x + 6 - 4x² + 22x - 16=0 34x - 10 = 0 34x = 10 /:34 x = ¹⁰/₃₄
x = ⁵/₁₇
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(2x + 3)² - 3 = (2x - 4)² - 6x
4x² + 12x + 9 - 3 = 4x²- 16x + 16 - 6x
4x² + 12x + 6 = 4x² - 22x + 16
4x² + 12x + 6 - 4x² + 22x - 16=0
34x - 10 = 0
34x = 10 /:34
x = ¹⁰/₃₄
x = ⁵/₁₇