e. \( f(x)=-\frac{2}{5} x+3 \)

Solve for \( x \) by completing the square: \[ x^{2}=-3 x+10 \] Determine the value of \( p \) if \( f(x)=x^{2}+p x^{2}-x+3 \) gives a remainder of 15 when divided by \( x-2 \).

b) \( 15 x-(4 x-7)=95 \)

Solve by completing the square. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) \[ y^{2}+y-9=0 \] \( y=\square \)

12. Simplify \( \sqrt{a^{8} b^{6}} \sqrt{25 a^{4}} \sqrt{81 b^{2}} \)

7) \( \quad 4 x^{2}-12 x+9=0 \) 8) \( (x-2)(x+3)=6 \)