Question

(29)to the power2 -(28) to the power 2
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Answer 1

Answer:

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Answer 2

Answer:

${29}^{2} - {28}^{2} = 57$

Step-by-step explanation:

Use the identity

${a}^{2} - {b}^{2} = (a + b)(a - b)$

${29}^{2} - {28}^{2} = (29 + 28)(29 - 28) \\ = 57 \times 1 \\ = 57$