Practicing Success
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The value of $\frac{428×428×428+348×348×348}{428×428-428×348+348×348}$ is: |
776 62080 80 40 |
776 |
$\frac{428×428×428+348×348×348}{428×428-428×348+348×348}$ = a3 + b3 = ( a + b ) ( a2 + b2 - ab ) ( a + b ) = \(\frac{a^3 + b^3}{a^2 + b^2 - ab }\) So by comparing we get = a = 428 b = 384 So, a + b = 428 + 342 = 776 |
