Question

AYUDA ES PARA HOY
(x-5)(3x+4)
(9v-4)(3v+1)
(8r+6r+3)(2r²-9r-14)
(9z-12)(4z+20)
(15y²+9y-11)(2y-6)​

Answer 1

1. 3x^2-11x-20
2. 27v^2-21v+4
3. 28r^3 - 120r^2 - 223r-42

Answer 2

Explicación paso a paso:

1.

3x² + 4x – 8x – 20 = 3x² – 4x –20

2.

27v²+ 9v –12v –4 = 27v² – 3v – 4

3.

28r³ – 126r² – 196r + 6r² – 27r – 42 =

28r³ – 120r² – 223r – 42

4.

36z² + 180z – 48z – 240 = 36z² + 132z – 240

5.

30y³ – 90y² + 18y² – 54y – 22y + 66 =

30y³ – 72y² – 76y + 66