Solve by completing the square x^2+4x=5

the answer was x=1 or x=-5

let's solve your equation step-by-step

1.step subtract 5 from both sides

x^2+4x-5=5-5

x^2+4-5=0

2.step factor left side of equation

(x-1)(x+5)=0

3.step set factors equal to 0

x-1=0 or x+5=0

x=1 or x=-5

hope that helps you

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3