What is (8a^3-10a)/(20a^3-25a) ?

The solution to (8a^3-10a)/(20a^3-25a) is 2/5

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simplify (8a^3-10a)/(20a^3-25a)

simplify

\frac{8 a ^{3} - 10 a}{20 a ^{3} - 25 a}

\frac{2}{5}

Decimal Notation

0.4

Solution steps

\frac{8 a ^{3} - 10 a}{20 a ^{3} - 25 a}

Factor

8 a^{3} - 10 a : 2 a (4 a^{2} - 5)

= \frac{2 a ( 4 a ^{2} - 5 )}{20 a ^{3} - 25 a}

Factor

20 a^{3} - 25 a : 5 a (4 a^{2} - 5)

= \frac{2 a ( 4 a ^{2} - 5 )}{5 a ( 4 a ^{2} - 5 )}

Cancel the common factor:

a

= \frac{2 ( 4 a ^{2} - 5 )}{5 ( 4 a ^{2} - 5 )}

Cancel the common factor:

4 a^{2} - 5

= \frac{2}{5}

3 x - 6 = - 9 x + 4

\frac{1}{2} \cdot 6 \cdot 9

- 30 \cdot \frac{π}{180}

\frac{21 - 4 x}{9} + \frac{8 x + 15}{3} = 2

\frac{12 - 7 ( - 20 ) ^{4}}{5 + ( - 20 ) ^{4}}