Question

数学因式分解与化简求值m^3-2m^2-15mM^4-17m^2+16x^2y^2-15xy+50(X+y)^2-14(

Answer 1

m^3-2m^2-15m=m(m^2-2m-15)=m(m-5)(m+3)

M^4-17m^2+16=(m^2-16)(m^-1)=(m-4)(m+4)(m-1)m+1)

x^2y^2-15xy+50=(xy)^2-15xy+50=(xy-5)(xy-10)

(X+y)^2-14(x+y)+24=(x+y-12)(x+y-2)

(m^2-4m)^2-(m^2-4m)...