Work Step by Step
Subtract each term to obtain: $(x^2-x-5)-(3x^2-x+6) \\=x^2-x-5-3x^2-(-x)-6 \\=x^2-x-5-3x^2+x-6$ Combine like terms to obtain: $=(x^2-3x^2)+(-x+x)+(-5+(-6)) \\=-2x^2+0+(-11) \\=-2x^2-11$
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