How does the sign of the last term of a trinomial you know what type of factors you are looking for?
find blank #1 if the sign of the last term is positive, and find blank #2 if the sign of the last term is negative.
blank #1
a. one positive and one negative factor
b. two positive factors
c. two positive or two negative factors
d. two negative factors
blank #2
a. two negative factors
b. two positive factors
c. one positive and one negative factor
d. two positive and two negative factors

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.