Form a polynomial \( f(x) \) with real coefficients having the given degree and zeros. Degree \( 4 ; \) zeros: \( 4+2 i ; 2 \) multiplicity 2 Let a represent the leading coefficient. The polynomial is \( f(x)=a(\square) \). (Type an expression using \( x \) as the variable. Use integers or fractions for any numbers in the expression. Simplify y.

4. Diketahui \( f(x)=a \), maka \( f(2)=\ldots \) A. \( 2 f(x) \) B. \( 2 a \) C. 2 D. \( f(x) \) E. \( a \)

The height \( h \), in feet, of a projectile can be modeled by the equation \( h(t)=-16 t^{2}+v_{0} t+h_{0} \) where \( t \) is the time in seconds, \( h_{0} \) is the projectile's initial height in feet, and \( v_{0} \) is the projectile's initial vertical velocity in feet per second. Solve the projectile motion problem by completing the square. A soccer player kicks a soceer ball from the ground with an initial vertical velocity of var : \( v 0 \) feet per secoad. When will the ball land back on the ground? Round to the nearest tenth of a second. Enter the correct value in the box. Show Hints The ball will land on the ground again in \( \square \) second(s).

The height \( h \), in feet, of a projectile can bo modelod by the equation \( h(t)=-16 t^{2}+v_{0} t+h_{0} \) where \( t \) is the time in seconds, \( h_{0} \) is the projectile's ini height in feet, and \( v_{0} \) is the projectile's initial vertical velocity in feet per second. Solve the projectile motion problem by completing the square. A lacrosse playor throws a ball into the air from a hoight of 8 foet with an initial vertical volocity of 30 feot per second. When will the ball hit the groun Round to the nearest tenth of a second. Enter the correct value in tho box. Show Hints The ball will hit the ground in \( \square \) seconds.

Factor completely: \[ 2 u^{4} w^{4}-2 w^{4} \]

Factor completely: \[ 32 v^{3}-2 v^{3} x^{4} \]