. Спростити вираз: (5х - 3) - (3 – 5х)(5х + 3).

Question

. Спростити вираз: (5х - 3) - (3 – 5х)(5х + 3).

Answer 1

5x - 3 - (3 - 5x)(3 + 5x) = 5x - 3 - (9 - 25x^2) = 25x^2 + 5x - 12