1. (x+3)² + (x-4)² = 2(4-x) * (x+3) = x² + 6x + 9 + x² - 8x + 16 = (8-2x) * (x+3)
2x² - 2x + 25 = 8x + 24 - 2x² - 6x
2x² - 2x + 25 = 2x + 24 - 2x²
2x² - 2x + 25 - 2x - 24 + 2x² = 0
4x² - 4x + 1 = 0
(2x -1)² = 0
2x - 1 = 0
2x = 1
x =
1. (x+3)² + (x-4)² = 2(4-x) * (x+3) = x² + 6x + 9 + x² - 8x + 16 = (8-2x) * (x+3)
2x² - 2x + 25 = 8x + 24 - 2x² - 6x
2x² - 2x + 25 = 2x + 24 - 2x²
2x² - 2x + 25 - 2x - 24 + 2x² = 0
4x² - 4x + 1 = 0
(2x -1)² = 0
2x - 1 = 0
2x = 1
x =