if a+1/2a=3,find(1)a^2+1/4a^2 (2) a-1/2a
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2(8)+3(10) = 46
16 + 30 = 46
46 = 46
LHS = RHS
3(8) + 5(10) = 74
24 + 50 = 74
74 =74
LHS = RHS
Hope it help
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