Solve the equation p^2 + 4p = 1 by completing the square.
1 answer:
Answer:
p = -2 ±sqrt( 5)
Step-by-step explanation:
p^2 + 4p = 1
Take the coefficient of p
4
Divide by 2
4/2 =2
Square it
2^2 = 4
Add it to each side
p^2 + 4p+4 = 1+4
(p+2) ^2 = 5
Take the square root of each side
sqrt((p+2) ^2) =±sqrt( 5)
p+2 = ±sqrt( 5)
Subtract 2 from each side
p+2-2 = -2 ±sqrt( 5)
p = -2 ±sqrt( 5)
You might be interested in
= 10/60 - 6/60
= 4/60
= 1/15
You have to dive the x and the Y so R=7
$123.75 you would round all of them to the nearest hundreth
That's we can solve by using a combination algorithm:
Answer:
x = 20
Step-by-step explanation:
Since there's 2 lines intercepting each other, the angle opposite of the other is the same.
3(20) + 50 = 110
6(20) - 10 = 110
