Factoring, Zeros, Roots, Solutions

Factor the expression.

 $x^2+6x+8$  

• (x+6)(x+8)

• (x+8)(x-2)

• (x+4)(x+2)

• (x+8)(x+1)

Factor the expression.

 $y^2-10y+21$  

• (y+3)(y-7)

• (y-7)(y-3)

• (y-3)(y+7)

• (y-21)(y-1)

Factor the expression completely.

 $4a^2b^3\ -\ 10a^4b^2$  

•  $2a^2b^2\left(2b\ -5a^2\right)$  

•  $2ab\left(2ab^2\ -\ 5a^2b\right)$  

•  $a^2b^2\left(4b-10a^2\right)$  

•  $4a^2b\left(ab^2\ -10a^2b\right)$  

Factor the expression.

 $x^2-12x\ -\ 28$  

• (x+14)(x-2)

• (x-7)(x+4)

• (x-7)(x-4)

• (x-14)(x+2)

Find the zeros.

• x=-3, -2, -1, 0, 1, 2, 3

• x=-4

• x=-2, 2

• x=-3, 3

Which of the following quadratic functions has zeros at x=-1 and x=3?

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Find the roots of the quadratic function.

 $f\left(x\right)=x^2-x\ -42$  

• x=42, 1

• x=7, 6

• x=-7, 6

• x= 7, -6

Find the zeros.

 $x^2+9x\ +14$  

• x=7,2

• x=-7,-2

• x=14,1

• x=-14,-1

Factor the expression completely.

 $10y-5$  

• 5(5y-1)

• -5(2y-1)

• 5(2y)

• 5(2y-1)

Solve the quadratic equation.

 $x^2+6x+5=0$  

• x=5,1

• x=2,3

• x=-5,-1

• x=-2,-3