Evaluate using the identify (a – b)2 = a2 – 2ab + b2.(49)2

1.	Evaluate using the identify (a – b)2 = a2 – 2ab + b2.(49)2
Answer» 49² = (50 – 1)² (a – b)² = a² – 2ab + b² Here a = 50, b = 1 (50 – 1)² = 50² – (2)(50)(1) + 1² = 2500 – 100 + 1 (49)² = 2401

Answer»

49² = (50 – 1)²

(a – b)² = a² – 2ab + b²

Here a = 50, b = 1

(50 – 1)² = 50² – (2)(50)(1) + 1²

= 2500 – 100 + 1

(49)² = 2401

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