Question

4) Aplicando os casos de fatoração, fatore os polinômios: a) x² + 5x = b) 4x² - 12x + 9 = c) x³ - 2x² + 4x – 8 = d) ax – a + bx – b = e) x³ - x²y + xy – y² = f) a³b² + a²b³ = g) 6x³ + 8x² = h) 14xy – 21 xy = i) y³ - 5y² + y – 5 = j) 2x + ay + 2y + ax = k) x² - 10x + 25 = l) 25a^4 – 100 b² =

Answer 1

$a) x^{2} + 5x =\\x^{2} +x = 5\\2x^{2} =5\\\\\\\\b) 4x^{2} 12x + 9=\\x^{2} + x = 4 + 12 + 9 \\2x^{2} = 26$