Respuesta:
es una operacion aritmetica de sustraccion. sustraes la variante o la pones en negativo.
She has five dimes and seven nickels with a total of $.85
Answer:
7x^2+21x+14
Step-by-step explanation:
With this all we have to do is foil:
first outside inside last
first: 7x^2
outside: 14x
inside: 7x
last: 14
we now combine them to
7x^2+14x+7x+14
we add like terms
7x^2+21x+14