Răspuns :
(x+4)² + (x-6)² =
= x² + 8x + 16 + x² - 12x + 36 =
= 2x² + 8x + 16 - 12x + 36 =
= 2x² - 4x + 16 + 36 =
= 2x² - 4x + 52
= x² + 8x + 16 + x² - 12x + 36 =
= 2x² + 8x + 16 - 12x + 36 =
= 2x² - 4x + 16 + 36 =
= 2x² - 4x + 52
(x + 4)² + (x - 6)² =
= x² + 8x + 16 + x² - 12x + 36
= 2x² + 8x + 16 - 12x + 36
= 2x² - 4x + 16 + 36
= 2x² - 4x + 52
= x² + 8x + 16 + x² - 12x + 36
= 2x² + 8x + 16 - 12x + 36
= 2x² - 4x + 16 + 36
= 2x² - 4x + 52