Answer:
x^2 -9
Step-by-step explanation:
(x + 3)(x − 3)
FOIL
first x*x =x^2
outer -3x
inner 3x
last -3*-3 =-9
Add together
x^2 -3x+3x -9
Combine like terms
x^2 -9
Yes, 7,000 grams is equivalent to 7 kilograms.
54 1/9 Hopes this help just do the times its easy. :)
The only solution is x=-4
Answer:
14cm^2
Step-by-step explanation:

l = 7
h = 2

<em>Brainiest Appreciated!</em>