Question

Calcule as multiplicações:

a) 3 (2x²-5x+4)

b) 2 (5x+2)

c) (x+9)(x-20)

d) (x²+7)(x³+5)

e) (x+5)(x²+2x-10)

f) (2x²+1)(6x³-5x²+3x-8)​

Answer 1

Resposta:

a) 6x² - 15x + 12

b) 10x + 4

c) x² - 11x - 180

d) x⁵ + 5x² + 7x³ + 35

e) x³ + 7x² + 20x + 50

f) 12x⁵-10x⁴+12x³-21x²+3x-8