Question

Descompune in factori
Numai a,b,c de la 2

Answer 1

Răspuns:

2. a) x² - 100 = x² - 10² = (x - 10) × (x + 10)

b) 9x² - 64 = 3² x² - 64 = 3²x² - 8² = (3x²) - 8² = (3x - 8) × (3x + 8)

c) 7x² - 28x = 7x × (x - 4)