Show that (0.8a+0.4b)^2=(0.8a-0.4b)^2+1.28ab< br />
please help me solve this asap...
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Mathematics, 05.01.2021 14:40 mayamabjishovrvq9
Show that (0.8a+0.4b)^2=(0.8a-0.4b)^2+1.28ab< br />
please help me solve this asap
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