1.

Give answers with full explanation​

Answer»

Answer:

A) x^2+(-10-12) x+(-10) ×12=x^2-22x-120

B) m^2+(-3-7) M+(-3) ×(-7) =m^2-10m+21

C) x^2+(1/3-7/3) x+1/3× (-7/3) =x^2-2X-7/9

D) (2x)^2-(5y)^2=4x^2-25y^2


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