Factor 2x2 − 10x − 48 completely. a 2(x − 3)(x + 8) b (2x + 3)(x − 8) c (2x − 3)(x + 8) d 2(x + 3)(x − 8)

Alright, lets get started.

The given expression is :

Firstly, we could take 2 as common factor out

-5x could be written as -8x + 3x

Now, taking x common factor out in first two terms and 3 common factor in last two terms

or

Answer is option d.

Hope it will help :)

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1