What are the solutions to the equation -81a^2+90a-25=0 ?

The solutions to the equation -81a^2+90a-25=0 are a= 5/9

Find the zeros of -81a^2+90a-25=0

The zeros of -81a^2+90a-25=0 are a= 5/9

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

- 81 a^{2} + 90 a - 25 = 0

a = \frac{5}{9}

Decimal Notation

a = 0.55555 \dots

Solution steps

- 81 a^{2} + 90 a - 25 = 0

Solve with the quadratic formula

a_{1, 2} = \frac{- 90 \pm 9 0 ^{2} - 4 ( - 81 ) ( - 25 )}{2 ( - 81 )}

9 0^{2} - 4 (- 81) (- 25) = 0

a_{1, 2} = \frac{- 90 \pm 0}{2 ( - 81 )}

a = \frac{- 90}{2 ( - 81 )}

\frac{- 90}{2 ( - 81 )} = \frac{5}{9}

a = \frac{5}{9}

The solution to the quadratic equation is:

a = \frac{5}{9}

3 p^{2} = - 2 p

7 x - 24 + 5 x^{2} = 0

3 x^{2} + 4 = - 32

12 x - 0.06 x^{2} = 0

m^{2} + 3 m - 5 = 0

What are the solutions to the equation -81a^2+90a-25=0 ?
The solutions to the equation -81a^2+90a-25=0 are a= 5/9
Find the zeros of -81a^2+90a-25=0
The zeros of -81a^2+90a-25=0 are a= 5/9