Question

X^2-121 using suitable identity

Answer 1

Step-by-step explanation:

${x}^{2} - 121$

${x}^{2} - {(11)}^{2}$

Using

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

Therefore

$(x + 11)(x - 11)$

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