lexikirk13
lexikirk13
21-10-2014
Mathematics
contestada
factor this equation 4-49w^2
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luana
luana
21-10-2014
[tex]4-49w^2=\ \ \ \ | use\ fromula\ (a^2-b^2)=(a-b)(a+b)\\\\ 4-49w^2=(2^2-(7w)^2)=(2-7w)(2+7w)\\\\ after\ factorisation: \ 4-49w^2=(2-7w)(2+7w)[/tex]
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