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Expand and simplify.
$(x- 5 ) (x + 6)$
1. $x^2 - 1x + 30$
2. $x^2 +11 x - 30$
3. $x^2 + x - 30$
4. $x^2 - 11x -30$
Factor the expression.
$9x^2 + 24x +16$
1. $(x + 4)(9x - 1)$
2. $(3x + 16)(3x + 1)$
3. $(3x + 4)^2$
4. $(3x + 8)^2$
Subtract. $(7a^2 - 3a) - (5a^2 - 5a)$
1. $2a^2 - 8a$
2. $2a^2 + 2a$
3. $4$
4. $12a^2 - 8a$
Factor the expression.
$x^2 - 10 x + 16$
1. $( x - 8) (x - 2)$
2. $(x -4 ) (x - 4)$
3. $(x - 8) (x +2)$
4. $(x + 8 ) (x - 2)$
Declare which of the following is the solution to $10x^2 + x -2 = 0.$
1. $x = - 5, x = -2$
2. $x = - 1/2, x = 2/5$
3. $x = - 2/5, x = 1/2$
4. $x = 2, x = 5$
Determine the solutions of $x^2 - 14x +49 = 48.$
1. $- 7 +- 4sqrt3$
2. $- 7 +- 16sqrt3$
3. $7 +- 4sqrt3$
4. $7 +- 16sqrt3$
The correct factorization of $x^2 - 6x -27$ is one of the following:
1. (x + 3)(x - 9)
2. (x - 3)(x +9)
3. (x - 3)(x - 9)
4. (x + 3)(x + 9)
Expand. $(2x + 4 )(2-x)$
1. $8 - 2x^2$
2. $12 - 2x^2$
3. $8x - 2x^2$
4. $8 + 2x^2$
Solve the equation $x^2-2x-35=0$.
1. x=-7 and x=5
2. x=-7 and x=-5
3. x=7 and x=-5
4. x=7 and x=5
Which equation represents the graph?
1. $y = x$
2. $y = x^2$
3. $y = - x$
4. $y = - x^2$
If $2x^2 - 8x + 4 = 0, x =$
1. $-2 +- sqrt 2$
2. $-2 +- 2 sqrt 2$
3. $2 +- sqrt 2$
4. $2 +- 2 sqrt 2$
Solve for x
$x^2 + x=12$
1. 6,-2
2. -3,-4
3. -4,3
4. -2,6
Which equation represents the parabola shown?
1. $y=1/2 x^2$
2. $y=-1/2 x^2$
3. $y=2x^2$
4. $y=-2x^2$
Which equation has the same solutions as $x^2 + 6x - 7 = 0$?
1. $(x + 3)^2 = 2$
2. $(x - 3)^2 = 2$
3. $(x - 3)^2 = 16$
4. $(x + 3)^2 = 16$
1. $y = - x/2$
2. $y = x/2$
3. $y = -(x^2)/2$
4. $y = (x^2)/2$