What are the solutions to the equation completesquare b^2-2b-15=0 ?

The solutions to the equation completesquare b^2-2b-15=0 are b=5,b=-3

Find the zeros of completesquare b^2-2b-15=0

The zeros of completesquare b^2-2b-15=0 are b=5,b=-3

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b^{2} - 2 b - 15 = 0

b = 5, b = - 3

Solution steps

b^{2} - 2 b - 15 = 0

Move

15

to the right side

b^{2} - 2 b = 15

Rewrite in the form

(x + a)^{2} = b

(b - 1)^{2} = 16

For

the solutions are

f (x) = a, - a

Solve

b - 1 = 16 : b = 5

Solve

b - 1 = - 16 : b = - 3

The solutions to the quadratic equation are:

b = 5, b = - 3

x, s (x) = x^{2} - 6 x + 5

x, s (x) = x^{2} - 6 x + 8

(x - 2)^{2} = 4 (x + 3)

2 x^{2} - 7 x + 39 = 0

28 - x^{3} = (4 - x)^{3}

What are the solutions to the equation completesquare b^2-2b-15=0 ?
The solutions to the equation completesquare b^2-2b-15=0 are b=5,b=-3
Find the zeros of completesquare b^2-2b-15=0
The zeros of completesquare b^2-2b-15=0 are b=5,b=-3