What are the solutions to the equation completesquare r^2+18r+56=0 ?

The solutions to the equation completesquare r^2+18r+56=0 are r=-4,r=-14

Find the zeros of completesquare r^2+18r+56=0

The zeros of completesquare r^2+18r+56=0 are r=-4,r=-14

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r^{2} + 18 r + 56 = 0

r = - 4, r = - 14

Solution steps

r^{2} + 18 r + 56 = 0

Move

56

to the right side

r^{2} + 18 r = - 56

Rewrite in the form

(x + a)^{2} = b

(r + 9)^{2} = 25

For

the solutions are

f (x) = a, - a

Solve

r + 9 = 25 : r = - 4

Solve

r + 9 = - 25 : r = - 14

The solutions to the quadratic equation are:

r = - 4, r = - 14

4 x^{2} + 5 x = - 10

2 x^{2} - 9 x + 4 = 0

(x^{2} + 2 x - 2) = 0

x, \frac{z ^{2}}{2} - \frac{x ^{2}}{3} - y^{2} = 0

x (x + 13) = 420

What are the solutions to the equation completesquare r^2+18r+56=0 ?
The solutions to the equation completesquare r^2+18r+56=0 are r=-4,r=-14
Find the zeros of completesquare r^2+18r+56=0
The zeros of completesquare r^2+18r+56=0 are r=-4,r=-14