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:
im in middle school and im trying to figure this out as well
Step-by-step explanation:
sorry if i get it i will tell you
Answer:
A, E
Step-by-step explanation:
You have to look for the ordered pairs where x (the first digit) doesn't repeat. that's a + e
