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
I believe it would be about 1.57
Answer:
Step-by-step explanation:
I cant remember how to do it but one way would be to find the series expansion of this at x = ∞.
Answer:
Step-by-step explanation:
Answer is 9(-2)=-18 but that choice doesn't appear in your list of answers
