Answer:
14
Step-by-step explanation:

Answer:
I think there both negative but I'm not sure
Step-by-step explanation:
if one is a positive and one is a negative then reflect over the y axis they should both turn negative
Let
x-------------> amount added <span>to each side
</span>A-------------> area increased----------> 84 ft²
we know that
A=(10+x)*(5+x)=84-----------> 10*5+10*x+5*x+x²
50+15x+x²=84----------> x²+15x-34=0
<span>solving the second order equation
</span>x1=-17
x2=2
the answer is x=2 ft
Answer:
2 ft
Step-by-step explanation:



Answer: 2 ft
Answer:
X= 7 I'm sure
Step-by-step explanation:
If you want me to expand on the equation leave me a comment :)