What are the solutions to the equation 10(x+9)^2+21=4021 ?

The solutions to the equation 10(x+9)^2+21=4021 are x=11,x=-29

Find the zeros of 10(x+9)^2+21=4021

The zeros of 10(x+9)^2+21=4021 are x=11,x=-29

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10 (x + 9)^{2} + 21 = 4021

x = 11, x = - 29

Solution steps

10 (x + 9)^{2} + 21 = 4021

Move

21

to the right side

10 (x + 9)^{2} = 4000

Divide both sides by

10

(x + 9)^{2} = 400

For

(g (x))^{2} = f (a)

the solutions are

g (x) = f (a), - f (a)

Solve

x + 9 = 400 : x = 11

Solve

x + 9 = - 400 : x = - 29

The solutions to the quadratic equation are:

x = 11, x = - 29

r^{2} - 51 r + 270 = 0

1 1^{2} + 7^{2} = c^{2}

0 = 0.5 x^{2} + 15 x + 5000

x (x + 12) = - 35

x^{2} - 16 x + 28 = 0

What are the solutions to the equation 10(x+9)^2+21=4021 ?
The solutions to the equation 10(x+9)^2+21=4021 are x=11,x=-29
Find the zeros of 10(x+9)^2+21=4021
The zeros of 10(x+9)^2+21=4021 are x=11,x=-29