What is factor 3a^2-4a-20 ?

The solution to factor 3a^2-4a-20 is (a+2)(3a-10)

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factor 3a^2-4a-20

factor

3 a^{2} - 4 a - 20

(a + 2) (3 a - 10)

Solution steps

3 a^{2} - 4 a - 20

Break the expression into groups

= (3 a^{2} + 6 a) + (- 10 a - 20)

Factor out

3 a

from

3 a^{2} + 6 a : 3 a (a + 2)

Factor out

- 10

from

- 10 a - 20 : - 10 (a + 2)

= 3 a (a + 2) - 10 (a + 2)

Factor out common term

a + 2

= (a + 2) (3 a - 10)

n^{2} + 8 n - 9

3 (5 + 5 x)

\frac{7}{8} \cdot \frac{16}{21}

(3 k^{2} - 7 k) - (5 k^{2} + 2 k - 8)

\frac{18}{24}