Q. Perform the operation.(−10x2+7x−1)−(−5x2+5)Answer:
Write Polynomials: Write down the polynomials to be subtracted.We have the polynomials (−10x2+7x−1) and (−5x2+5). We need to subtract the second polynomial from the first.
Set Up Operation: Set up the subtraction operation.To subtract the polynomials, we change the signs of the second polynomial and then add it to the first polynomial.(−10x2+7x−1)−(−5x2+5)= (−10x2+7x−1)+(5x2−5)
Combine Like Terms: Combine like terms.Now, we add the coefficients of the like terms.(−10x2+5x2)+(7x)+(−1−5)= (−10+5)x2+7x+(−1−5)
Simplify Expression: Simplify the expression.We simplify the expression by performing the addition and subtraction.(−10+5)x2+7x+(−1−5)= −5x2+7x−6