You look for a common factor between the two terms, take it out, and use the distributive property.
To factorise the expression (15a + 6), first identify the greatest common factor (GCF) of the coefficients, which is 3. Then, factor out the GCF from the expression: (15a + 6 = 3(5a + 2)). Thus, the factored form is (3(5a + 2)).
5a-20=
5a-20 = -15
2
2a-5
15
What about it? Factorise it?
5a-20=
5a-20 = -15
2a
2
2a-5
With the help of the quadratic equation formula
5a + 20 = ? Your question is incomplete.
2a + 11a - 5a = 8a
2a+5
2(2x-11)(3x+5)