Question

09 - Efetue:
a) 2x • (4x²- 3x + 7) =

b) -5x⁵• (2 - 3x - 4x²) =

c) 10x³ • (3x³ - 2x² + x) =

d) -x⁵ • (7x⁴ + 5x³- 3x²- x) =​

Answer 1

8x³-6x²+14x

$- 20x {}^{7} + 15x {}^{6} - 10x {}^{5}$

$30x {}^{6} - 20x {}^{5} + 10x {}^{4}$

$- 7x {}^{9} - 5x {}^{8} + 3x {}^{7} + x {}^{6}$

espero ter ajudado.