The number of unwatched shows in Sylvia's DVR is 85. This number grows by 20 unwatched shows per week. The function N(t) = 85 + 20t represents the relation between the number
of unwatched shows, N, and the time, t, measured in weeks. Find the value for N(4).
105
165
115
100

the answer to 3p+12m+8=23pm

the difference of two squares is a special form that has a factorization worth memorizing.

a² - b² = (a - b)(a + b)

your equation can be factored as

x² - 16 = 0

(x - 4)(x + 4) = 0

the zero product rule tells you the solutions are the values of x that make these factors zero: x=4, x=-4.

step-by-step explanation: