Question

Me ayudaaaaaaaaaaaaaaaaan doy coronaaa rapido porfaaa

Answer 1

RESOLVER:

a) $\left(7x+6\right)\left(2x\right)$

$=\left(2x\right)\left(7x+6\right)$

$=2x\cdot \:7x+2x\cdot \:6$

$\boxed{=14x^2+12x}$ (I) INCORRECTO

b) $x\left(3x^3+2y^2\right)$

$=x\cdot \:3x^3+x\cdot \:2y^2$

$\boxed{=3x^4+2xy^2}$ (C) CORRECTO

c) $\left(2x-1\right)\left(2x+1\right)$

$=\left(2x\right)^2-1^2$

$\boxed{=4x^2-1}$ (I) INCORRECTO

d) $5xy^3\left(x^4+2y^5\right)$

$=5xy^3x^4+5xy^3\cdot \:2y^5$

$\boxed{=5x^5y^3+10xy^8}$ (I) INCORRECTO

$BUENA\:\:SUERTE$