Question

evaluate 888 square- 11square​

Answer 1

Answer:

let's use a^2 -b^2=(a-b)(a+b)

(888-11)(888+11)

(877)(899)

788,423 answer

Answer 2

Answer:

${888}^{2} - {11}^{2} = (888 + 11)(888 - 11) \\ \\ = (899)(877) = 788423 \\ \\ because \: = > {a}^{2} - {b}^{2} = (a + b)(a - b)$