Question

please complete section A plz plz otherwise reported​

Answer 1

Answer:

$1) : (i) \rightarrow \: degree = 3 \\ \\ (ii) \rightarrow \: degree = 6 \\ 2) : coefficient \: of \: {x}^{4} = - 5 \\ 3) : {z}^{2} - 2z \\ = z(z - 2) \\ = > z = 0 \: ,\: 2 \\ 4) : (4 + 5x)(4 - 5x) \\ = {(4)}^{2} - {(5x)}^{2} \\ = 16 - 25 {x}^{2} \\ 5) : p(x) = {x}^{2} + 8x + k = 0 \\ p( - 1) = {( - 1)}^{2} + 8( - 1) + k = 0 \\ = > 1 - 8 + k = 0 \\ = > \boxed{ k = 7} \\ \\ \red{\mathfrak{\underline{\large{Hope \: It \: Helps \: You }}}} \\ \green{\mathfrak{\underline{\large{Mark \: Me \: Brainliest}}}}$