Question

( 5x-3).(2x²+4x-3 )​

Answer 1

Resposta:

$40x ^{4} - 24x^{3} - 15x + 9$

Explicação passo-a-passo:

$(5x - 3).(2x^{2} + 4x - 3) = \\ \\ (5x - 3).(8x^{3} - 3) = \\ \\ 40x ^{2} - 15x - 24x^{3} + 9 = \\ \\ 40x^{4} - 24x^{3} - 15x + 9$