Question

find the value using identies
${102}^{2} - {98}^{2}$
plz Solve this question​

Answer 1

Answer:

800

Step-by-step explanation:

${(102)}^{2} - {(98)}^{2} \\ \\ by \: {a}^{2} - {b}^{2} = (a + b)(a - b) \\ \\ (102 + 98)(102 - 98) \\ = 200 \times 4 \\ = 800$

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