What is (y^2-10y+9)/(y^2-1)*(y+4)/(y^2-5y-36) ?

The solution to (y^2-10y+9)/(y^2-1)*(y+4)/(y^2-5y-36) is 1/(y+1)

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (y^2-10y+9)/(y^2-1)*(y+4)/(y^2-5y-36)

simplify

\frac{y ^{2} - 10 y + 9}{y ^{2} - 1} \cdot \frac{y + 4}{y ^{2} - 5 y - 36}

\frac{1}{y + 1}

Solution steps

\frac{y ^{2} - 10 y + 9}{y ^{2} - 1} \cdot \frac{y + 4}{y ^{2} - 5 y - 36}

Cancel

\frac{y ^{2} - 10 y + 9}{y ^{2} - 1} : \frac{y - 9}{y + 1}

= \frac{y - 9}{y + 1} \cdot \frac{y + 4}{y ^{2} - 5 y - 36}

Cancel

\frac{y + 4}{y ^{2} - 5 y - 36} : \frac{1}{y - 9}

= \frac{y - 9}{y + 1} \cdot \frac{1}{y - 9}

Cross-cancel common factor:

y - 9

= \frac{1}{y + 1}

1 \cdot 1 0^{- 14}

\frac{47}{2}

(40)^{2}

\frac{- 2}{2 ( - 1 )}

\frac{sin ( a )}{cos ( a )} + \frac{cos ( a )}{sin ( a )}

What is (y^2-10y+9)/(y^2-1)*(y+4)/(y^2-5y-36) ?
The solution to (y^2-10y+9)/(y^2-1)*(y+4)/(y^2-5y-36) is 1/(y+1)