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LoginWhat would be the square of 93 using the identity (a +b)2 = a2 + b2 + 2ab?
Interview Questions Math 1 year ago
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Naushad Malik![Tuteehub forum best answer]()
Best Answer
1 year ago
-step EXPLANATION:on DECOMPOSING :200+9 = 209here a = 200 and B = 9using the identify (a+b)*2 =a*2+2ab+ b2:209*2 = (200+9)*2 = 200*2 +2(200)(9)+9*2=40000 +3600 +81= 43681
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