Subtract:
– x 2 + 10x – 5 from 5x – 10

Subtract:
– x 2 + 10x – 5 from 5x – 10

Dear Student

When term have the same algebraic factors, they are like terms.
Then, we have to subtract the like terms
= 5x–10–(-x^2+ 10x - 5)
= 5x–10 + x^2–10x + 5
= x^2+ 5x–10x–10 + 5
= x^2–5x - 5
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​Thanks