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If b - a = 4 and 2a + 2b = 12, then a2+b2=? (A2 means is A square and b2 is B square |
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Answer» Answer: 26 Step-by-step explanation: We have, b-a = 4 ........(I) And , 2a+2b = 12 => 2(a+b) = 12 => a+b = 6 => b+a = 6 .........(II)
Adding (I) and (II) , We get 2b = 10 => b = 10÷2 => b = 5 ... From (II) a = 6-b => a = 6-5 => a = 1 ... So , a² + b² = (1)² + (5)² = 1 + 25 So , a² + b² = 26 ... |
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