A=x^2+4
(x^2+4)^2+32=12x^2+48
12x^2+48=12(x^2+4)
(x^2+4)^2+32=12(x^2+4)
a^2+32=12a
subtract 12a from both sides
a^2-12a+32=0
factor
(a-4)(a-8)=0
set each to zero
a-4=0
a=4
a-8=0
a=8
a=4 or 8
a=x^2+4
8=x^2+4 and
4=x^2+4
subtract 4
4=x^2
0=x^2
square root
+/-2=x
0=x
x=-2,0,2
ax^2+bx+c=0
coefficient of the a term is 1
constant=32
The first from right 8*3=24
72*3=216
216*3=648
648*3=1944
1944*3=5832
Sarah was locked out of her apartment and the only way out is through a window three stories high 20 feet above the ground. She needed to borrow from one of her friends. There is a tree along the side of the house so she will need to put the ladder 15 feet from her apartment. How long does the ladder need to be to reach the apartment window?
Answer:
0.5239 would round to 0.52
3,204,887,219 would round to 3,000,000,000
Step-by-step explanation:
