Question

Expand bracket 6m minus 5n plus 7p whole square

Answer 1

Answer:

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Answer 2

Answer:

(6m-5n+7p)^2=(6m)^2+(5n)^2+(7p)^2+2×6m×-5n+2×-5n×7p+2×7p×6m

=36m^2+25n^2+49p^2-60mn-70np+84pm

identity used=(a+b+c)^2=a^2+b^2+c^2+2ab+2bc+2ca