What are the solutions to the equation 80=100-6.25(x-9)^2 ?

The solutions to the equation 80=100-6.25(x-9)^2 are x=10.78885…,x=7.21114…

Find the zeros of 80=100-6.25(x-9)^2

The zeros of 80=100-6.25(x-9)^2 are x=10.78885…,x=7.21114…

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80 = 100 - 6.25 (x - 9)^{2}

x = 10.78885 \dots, x = 7.21114 \dots

Solution steps

80 = 100 - 6.25 (x - 9)^{2}

Switch sides

100 - 6.25 (x - 9)^{2} = 80

Move

100

to the right side

- 6.25 (x - 9)^{2} = - 20

Divide both sides by

- 6.25

(x - 9)^{2} = 3.2

For

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

the solutions are

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

Solve

x - 9 = 3.2 : x = 10.78885 \dots

Solve

x - 9 = - 3.2 : x = 7.21114 \dots

The solutions to the quadratic equation are:

x = 10.78885 \dots, x = 7.21114 \dots

10125

p^{2} + 4 p - 5 = 0

- 9 = 3 (x - 5)

\frac{4 x}{3} + 3 x - 5 = 0

lo g_{2} (x) > 0

What are the solutions to the equation 80=100-6.25(x-9)^2 ?
The solutions to the equation 80=100-6.25(x-9)^2 are x=10.78885…,x=7.21114…
Find the zeros of 80=100-6.25(x-9)^2
The zeros of 80=100-6.25(x-9)^2 are x=10.78885…,x=7.21114…