Question

PLS HELP
Use the formula​

Answer 1

Answer:

(x+4)(x-1)(x+1)(x-4)

Step-by-step explanation:

here a=3x,b=x2-4

• a2-b2=(a+b)(a-b)

• =(3x+x2-4)(3x-(x2-4))
• =(x2+3x-4)(-x2+3x+4)
• ={(x+4)(x-1)}(x2-3x-4)
• =(x+4)(x-1){(x+1)(x-4)}
• =(x+4)(x-1)(x+1)(x-4)