Question

Cn someone factorise. 3a^2-21a-24

Answer 1

First factor out the 3.

3a^2-21a-24 = 3(a^2 -7a -8)

How about
3(a-8)(a+1) ?

Answer 2

3a^2-21a-24=3(a^2-7a-8)=3(a-8)(a+1).you just look at the l.c.m of the numbrs n divide that numbers by dat l.cm e.g 3,21,n 24 l.cm is 3 u jst divide ths number by dat 3 bt nt 4gtng da base wich is b

Answer 3

I dnt undstnd

Answer 4

Come again