The product of two opposite numbers is -289. What are those numbers?
1 answer:
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Step-by-step explanation:
our equation is x²+16x = -44
- x²+16x= -44
- x² is the first term so weill have in the middle 2*x* a number
- x²+2*x*8 = -44
- the third term is 8² wich is 64 so we will add it in both sides
- x²+2*x*8+64 = -44+64
- (x+8)² = 20
Now that we have completed the perfect square let's solve the equation
- (x+8)² = 20
- x+8 =
or x+8= -
- x = -8+
so the first answer is the correct one
64; 8 +/-
Answer:
<h2>r = 8</h2>Step-by-step explanation:
The standard form of an equation of a circle:
(h, k) - center
r - radius
We have the equation:
Therefore the center is (0, 0) and the radius r = 8