What is factor 25x^2+81-90x ?

The solution to factor 25x^2+81-90x is (5x-9)^2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

factor 25x^2+81-90x

factor

25 x^{2} + 81 - 90 x

(5 x - 9)^{2}

Solution steps

25 x^{2} + 81 - 90 x

Write in the standard form

= 25 x^{2} - 90 x + 81

Rewrite in the form of

a^{2} + 2 ab + b^{2} :

25 x^{2} = (5 x)^{2}

81 = 9^{2}

- 90 x = - 2 \cdot 5 x \cdot 9

= (5 x)^{2} - 2 \cdot 5 x \cdot 9 + 9^{2}

Apply Perfect Square Formula:

a^{2} - 2 ab + b^{2} = (a - b)^{2}

(5 x)^{2} - 2 \cdot 5 x \cdot 9 + 9^{2} = (5 x - 9)^{2}

= (5 x - 9)^{2}

(8 + 5 i) (8 - 5 i)

\frac{( 2 - 7 )}{( 2 + 4 )}

∣ x ∣ = (- 2 - 3)^{2} + (16 - 4)^{2}

\frac{4 - x}{3} - \frac{2}{5} \leq \frac{- 2 x - 3}{- 3}

5 y^{4} + 25 y^{3} - 70 y^{2}