which expression can be used to find the difference of the polynomials? (4m - 5) - (6m - 7 + 2n) (4m - 5) +…

which expression can be used to find the difference of the polynomials? (4m - 5) - (6m - 7 + 2n) (4m - 5) + (6m + 7 + 2n) (4m - 5) + (-6m + 7 + 2n) (4m - 5) + (-6m - 7 - 2n) (4m - 5) + (-6m + 7 - 2n)
Answer
Explanation:
Step1: Apply the rule of subtracting polynomials
To subtract a polynomial $(6m - 7+2n)$ from $(4m - 5)$, we change the signs of all the terms in the polynomial being subtracted and then add. So, $(4m - 5)-(6m - 7 + 2n)=(4m - 5)+(-6m + 7-2n)$.
Answer:
$(4m - 5)+(-6m + 7-2n)$