If (x - 1) is a factor of the polynomial f(x) = 4x³ - 4x² - x-k, where k is a
constant,
i) find the value of k.
ii) factorise f(x) completely and state the
zeros of f(x).​

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.

Which of the following expressions are equivalent ?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?