What are the solutions to the equation completesquare n^2=18n+40 ?

The solutions to the equation completesquare n^2=18n+40 are n=20,n=-2

Find the zeros of completesquare n^2=18n+40

The zeros of completesquare n^2=18n+40 are n=20,n=-2

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n^{2} = 18 n + 40

n = 20, n = - 2

Solution steps

n^{2} = 18 n + 40

Move

18 n

to the left side

n^{2} - 18 n = 40

Rewrite in the form

(x + a)^{2} = b

(n - 9)^{2} = 121

For

the solutions are

f (x) = a, - a

Solve

n - 9 = 121 : n = 20

Solve

n - 9 = - 121 : n = - 2

The solutions to the quadratic equation are:

n = 20, n = - 2

x, x^{2} + 3 x + 4 = m x

8 x^{2} - 50 = 0

x, z = x^{2} e^{- y}

3 r^{2} - 12 r - 77 = 5

4 x^{2} - 8 x = 5

What are the solutions to the equation completesquare n^2=18n+40 ?
The solutions to the equation completesquare n^2=18n+40 are n=20,n=-2
Find the zeros of completesquare n^2=18n+40
The zeros of completesquare n^2=18n+40 are n=20,n=-2