Question

factorize ax-5a+4x-20

Answer 1

Step-by-step explanation:

ax-5a+4x-20

Factorization found :

(a + 4) • (x - 5)

Trying to factor a multi variable polynomial :

1.1 Split ax - 5a + 4x - 20

into two 2-term polynomials

- 5a + ax and + 4x - 20

This partition did not result in a factorization. We'll try another one:

ax - 5a and + 4x - 20

This partition looks good

1.2 Pull out from each binomial separately

ax - 5a = a • (x - 5)

+ 4x - 20 = + 4 • (x - 5)

1.3 Add up to arrive at the desired factorization

(a + 4) • (x - 5)

Factorization found :

(a + 4) • (x - 5)

Answer 2

Answer:

a(x-5) + 4(x-5)

(a+4) (x-5)

Short way

thnx