The value of 9²-1is equal to
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Answer:
80
Step-by-step explanation:
9²-1 = 9²-1² = (9+1)(9-1) 10×8
9²-1 = 9²-1² = (9+1)(9-1) 10×8= 80
9²-1 = 9²-1² = (9+1)(9-1) 10×8= 80PLEASE MARK AS BRAINLIEST
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