Question

expand 899 square 2 using algebric identites​

Answer 1

$(899) {}^{2} \\ (900 - 1) {}^{2} \\ (900) {}^{2} + (1) {}^{2} - 2 \times 900 \times 1 \\ 810000 + 1 - 1800 \\ 810001 - 1800 \\ 808201$

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Answer 2

=)(899)²

=)(900−1)²

=)(900) +(1)² −2×900×1

=)810000+1−1800

=)810001−1800

=)808201