Multiply the binomials: (x – 9)(x + 2).
(1 point)
Responses
x2 – 7x – 18
x 2 – 7 x – 18
x2 – 11x – 18
x 2 – 11 x – 18
x2 – 7x + 18
x 2 – 7 x + 18
x2 + 7x – 18
The correct answer is x2 – 7x – 18.
Multiply the binomials:
left parenthesis 2 x minus 4 right parenthesis left parenthesis 4 x plus 2 right parenthesis
(1 point)
Responses
8 x squared minus 8
Image with alt text: 8 x squared minus 8
8 x squared minus 12 x minus 8
Image with alt text: 8 x squared minus 12 x minus 8
6 x squared minus 12 x minus 2
Image with alt text: 6 x squared minus 12 x minus 2
6 x minus 2
The correct answer is 8x^2 - 12x - 8.
Simplify the following expression: (x – 9)2.
(1 point)
Responses
x2 + 18x + 81
x2 + 18x + 81 - no response given
x2 – 18x + 81
x2 – 18x + 81 - no response given
x2 + 81
x2 + 81 - incorrect
x2 – 81
The correct answer is x^2 - 18x + 81.
Multiply the binomials: (x – 8)(x + 8).
(1 point)
Responses
x2 – 64
x 2 – 64
x2 – 16x + 64
x 2 – 16 x + 64
x2 + 64
x 2 + 64
x2 + 16x – 64
The correct answer is x^2 - 64.
Factor the trinomial: x2 + 6x – 16.
(1 point)
Responses
(x + 8)(x – 2)
(x + 8)(x – 2) - no response given
(x – 8)(x + 2)
(x – 8)(x + 2) - no response given
(x + 4)(x + 4)
(x + 4)(x + 4) - no response given
(x + 10)(x – 6)
The correct answer is (x + 8)(x - 2).
Factor the trinomial: x2 – 8x – 33.
(1 point)
Responses
(x – 11)(x – 3)
( x – 11)( x – 3)
(x – 11)(x + 3)
( x – 11)( x + 3)
(x + 11)(x – 3)
( x + 11)( x – 3)
(x + 11)(x + 3)