multiply (2z-4) with (2z+4)
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Answered by
3
Answer:
(2z-4) *(2z+4)
(2z-2z) *(4+4)
z*8
8z
Answered by
0
Answer:
(2z-4) (2z+4)
we have to multiply 1st 2z× (2z+4) and then by -4 .. LIKE THIS..
4z²+8z-8z-16(one 8z is in positive form and one is in negative form So, we can cut them)
4z²-16..
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