Question

please solve it question 5 and 6

Answer 1

This is your answer see it okkkkkkkkkkkkkkkkk

Answer 2

Q no. 5)
$p(x) = x + 4 \\ p( - x) = - x + 4 = 4 - x \\ p(x) + p( - x) = x + 4 + 4 - x \\ p(x) + p( - x) = 8$
Q no. 6)
$if \: \frac{a}{b} + \frac{b}{a} = - 1 \\ then \: a {}^{2} + b {}^{2} + ab = 0 \\ we \: know \: that \\ a {}^{3} - b {}^{3} = (a - b)(a {}^{2} + b {}^{2} + ab) \\ = (a - b) \times 0 = 0 \\ so \: \: a {}^{3} - b {}^{3} = 0$