Question

Find the missing term
(m-n)^2=m^2-_____+n^2

Answer 1

2mn

Explanation:

The expanded form of the square can be found using the distributive property.

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(m -n)² = (m -n)(m -n) = m(m -n) -n(m -n) . . . use the distributive property

= m² -mn -nm +n² . . . . use it again

= m² -2mn +n² . . . . . . combine like terms

The missing term is 2mn.