(a) \( (2 a+b)^{3}-1=(\quad)( \) (b) \( 8-(3 m-n)^{3}=(\quad)( \) (c) \( (2 p+q)^{3}-(p-q)^{3}=(\quad) \) (d) \( (a+b) x^{3}-a y^{3}-b y^{3}=(\quad)()( \)

\( \frac{(x-12)}{y}=18 \) where \( y=2 \)

\[ y=x^{2}+8 x+18 \] Write your answer as an inequality using \( x \) or \( y \) as appropriate. Or, you may instead click on "Empty set" or "All reals" as the answer

\[ y=-3 x^{2}+12 x-15 \] Write your answer as an inequality using \( x \) or \( y \) as appropriate. Or, you may instead click on "Empty set" or "All reals" as the answer.

\( \frac{a+b}{a^{2}+b^{2}+2 a b}-a b \quad \) per \( a=4 ; b=-3 \)

1) \( (3 x)\left(2 x^{2}\right) \) 4) \( \left(x^{3}\right)\left(x^{2}+x\right)\left(3 x^{3}\right) \) 7) \( \left(x^{4}+3 x^{3}+2 x^{2}+11 x\right)\left(x^{3}\right) \)