Respuesta :

iteoluwajunaid

Answer:

To find the product, we use FOIL method.

First terms

Outer terms

Inner terms

Last terms

Product = (7x * 8x) + (7x * 5) + (-4 * 8x) + (-4 * 5) =

Product = 56x2 + 35x - 32x - 20 =

Product = 56x2 + 3x - 20

Step-by-step explanation:

josyylopezz
7x-4=8x+5
+4 +4
7x=8x+9
-8x -8x
-1x=9
divide -1 on both sides
x=-9

Otras preguntas