(128x128x128+326x326x326) / (326x326-326x128+128x128) =.....
A1270
B454
C788
D1450
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a , b എന്നിവ എണ്ണൽ സംഖ്യകളാണ്. a - b = 7, ab = 30 എങ്കിൽ a+b എത്ര ?
If (a + b)² = 10 and (a - b)² = 4 then what is a² +b²?