please edit your question man
1 Move all terms to one side.
{x}^{2}+15x+45=0
x
2
+15x+45=0
2 Use the Quadratic Formula.
x=\frac{-15+3\sqrt{5}}{2},\frac{-15-3\sqrt{5}}{2}
x=
2
−15+3
5
,
2
−15−3
5
3 Simplify solutions.
x=-\frac{3(5-\sqrt{5})}{2},-\frac{3(5+\sqrt{5})}{2}
x=−
2
3(5−
5
)
,−
2
3(5+
5
)
9514 1404 393
Answer:
33√2 in ≈ 46.7 inches
Step-by-step explanation:
The diagonal of a square is √2 times the side length, so for side length s we have ...
s√2 = 66 in
s = (66 in)/√2
x = 33√2 in ≈ 46.7 in . . . . length of each side of the blanket
