Find the zero of the polynomial: $p(x) = 2x + 5$

Find $p(0)$,$p(1)$,and $p(2)$ for the following polynomial: $p(x) = (x - 1)(x + 1)$.

Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer: $3 \sqrt{t} + t \sqrt{2}$

Factorise the following: $64 a^{3}-27 b^{3}-144 a^{2} b+108 a b^{2}$

Find the remainder when $x^{3}+3x^{2}+3x+1$ is divided by $x$.

Factorise $x^{3}-23 x^{2}+142 x-120$