Respuesta :

jakyyah123boo
9-16x^2
This is the answer pretty much the 3 is okay but once you see the four notice there’s - and + you’d multiply it
umairwaheed8888776

Answer:

16x^2-9=0

Step-by-step explanation:

3*3=9

3*-4x=  -12x

+4x*3=12x

+4x-4x=-16x^2

9-12x+12x-16x^2=0

-12x +12x cancel

16x^2-9=0

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