Question

binomio por binomio
(2×-5)(y+4)
ayuda x fis..​

Answer 1

$\left(2x-5\right)\left(y+4\right)$

$2xy+2x\cdot 4+\left(-5\right)y+\left(-5\right)\cdot 4$

$2xy+2\cdot 4x-5y-5\cdot 4$

$\boldsymbol{2xy+8x-5y-20}$