Question

Ayuda ;n;

(3xy-2)(-z+2y)


5x²y-10x³y²+15x²y²

(4a-1)(4a-7)

Answer 1

Respuesta:

*(3xy-2)(-z+2y)

(3xy)(-z)+(3xy)(2y)+(-2)(-z)+(-2)(2y)

-3xyz+6xy²+2z-4y

*5x²y-10x³y²+15x²y²

5x²y(1-2xy+3y)

*(4a-1)(4a-7)

(4a)²+(-1-7)(4a)+(-1)(-7)

16a²-32a+7