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Given the square of m-mn = 1, the square of 4mn-3n = - 2, find the square of M + the square of 3mn-3n
The square of M - Mn = 1, the square of 4mn-3n = - 2
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Square of m-mn + square of 4mn-3n = 1-2
Square of M + square of 3mn-3n = - 1
If m square Mn = 1.4mn-3n square = - 2, then m square + 3mn-3n square = what
M square Mn = 1 (1)
4mn-3n square = - 2 (2)
（1）+（2）
Square of M + 3mn-3n = - 1
(1)a^3-3a+2
(2)(x+1)(x+2)(x+3)(x+4)-120
a^3-3a+2=a^3-a-2a+2=a(a-1)(a+1)-2(a-1)=(a+1)(a-1)(a-2)(x+1)(x+2)(x+3)(x+4)-120 =(x+1)(x+4)*(x+2)(x+3)-120=(x^2+5x+4)(x^2+5x+6)-120=(x^2+5x+5+1)(x^2+5x+5-1)-120=(x^2+5x+5)^2-1-120=(x^2+5x+5)-121=(x^2+5...
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