pseudonymjane
pseudonymjane
10-01-2015
Mathematics
contestada
Expand (4x+0.9)^2.
Thanks!:))
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konrad509
konrad509
10-01-2015
[tex](4x+0.9)^2=(4x)^2+2\cdot4x\cdot0.9+0.9^2=16x^2+7.2x+0.81[/tex]
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