amynguyen336osyhb7
amynguyen336osyhb7
01-08-2017
Mathematics
contestada
-49x^2 +16 factor completely
Respuesta :
eeverston
eeverston
01-08-2017
(-7x+4)(7x+4)
-49x^2-28x+28x+16
Answer Link
apologiabiology
apologiabiology
01-08-2017
recognize the difference of 2 perfect squares
remember
a²-b²=(a-b)(a+b)
so
we can rearange them to look like this:
16-49x²
then show the squares
(4)²-(7x)²
then factor
(4-7x)(4+7x)
Answer Link
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