1. UNIVERSITY OF PHOENNIX MTH 209
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MTH 209 Discussion
1. select the difference of (6x2-5x2)-(4x2-9x3)
a. 6x2
b. 6x5
c. 2x2-14x3
d. 2x2+4x3
2. simply the following expression 8(6x+5)
a. 48x+40
b. 48x+5
c. 88x
d. 14x+13
3. select the product of (9x-2)(5x+3)
a. 45x2-17x-6
b. 62x-6
c. 45x2+17x-6
d. 14x+1
2. 4. simplify the following expression(x+2)3
a. 8x3
b. x3+8
c. x3+6x2+12x+8
d. x3+6
5. select the product of (9x+6)(9x-6)
a. 81x2-36
b. 81x2-108x-36
c. 18x2
d. 18x
6. select the product of (6x+3)(x2-3x+1)
a. 6x2-15x2-3x+3
b. 9x2-27x+9
c. 6x2-21x2-15x+3
d.x2+3x+4
7. select the product of(-4x3y)(x5y4)
a. 4x8y5
b. .4x8y5
c. .4x15y2
d. 4x15y4
8. select the product of (3x-3)(3x-3)
a. 9x2+9
3. b. 9x2+18x+9
c. 9x2-9
d. 9x2-18x+9
9. select the product of (3x+7).(7x-3)
a. 21x2-25x+8
b. 2x2+x-6
c. 2x2-x+6
d. x3+6
10. select the difference of (2x2-13x+7)-(1-12x)
a. 2x2-25x+8
b. 2x2+x-6
c. 2x2-x+6
d. x3+6
11. which of the following best illustrate a geometric representation of (x+2)(x+4)
http://www.justquestionanswer.com/viewanswer_detail/1-select-the-difference-of-6x2-5x2-4x2-9x3-a-
6x2-b-20173
MTH 209 Discussion
1. simplify the following rational expression
x2-25x2-3-10
a. x+5x+2
b. 35x
4. c. 25x-10
d.x2-25x2-3x-10
2. select the product
3/2x-1 – 5/2x-1
a. -15/(2x-1)2
b. -2/2x-1
c.-15/2x-1
d. 0
3. select the quotient
a. ((x+4)/(z-1))/((x2+x)(x-1))
b. (x+4)/(x-1)2
c. 1/x
d. x2+4x+4/2x
4. select the difference
a. (3/2x-1)
b. (-2)/2x-1
c.- 15/2x-1
d. 0
5. select the sum
(x/3x-6) +1/8
a. x/24(x-2)
b.1+x/3x+2
c. x/(24x-48)
5. d. 11x-6/24(x-2)
6. select the value of x that is solution for this equation
(6/x)=(7/x+3)
a. -13
b.18
c.6
d.9
7. an object 7.5 feet tall casts a shadow that is 22.5 feet long. How in feet would the shadow be for
an object which is 19.8 feet tall ?
a. 4.8 feet
b. 6.6 feet
c. 34.8 feet
d. 59.4 feet
http://www.justquestionanswer.com/viewanswer_detail/1-simplify-the-following-rational-expression-
x2-25x2-3-10-20175
MTH 209 Discussion
1. solve forx inthe equationx2-6x-27=0
a. (-3,-9)
b. (3,-9)
c. (-3,9)
d. (3,9)
6. 2. considerthe equations
F(x)=-6x-1andg (x)=4x2
Selectsolutionfor(f+g)(x)
a.-6x-1+4x2+4x2
b. -24x2-4x2
c.-24x2-1
d. -6x-1-24x3
3. considerthe equations
F(x)=-6x-1andg(x)=4x2
a. -6x-1+4x2
b.-24x3-4x2
c. -24x2-1
d.-24x3
4. selectthe x-coordinate of the vertex of the paraboladefinedbythe functionf(x)=.5x+7x+2
a. .5/7
b. 2
c. 7/10
d. .7/5
5. determine the equationof g(x) thatresultfromtranslatingthe function
f(x)=x2+3upward7 units
a. g(x)=(x+10)2
b. g(x)=(x+7)2+3
7. c. g(x)=x2.4
d.g(x)=x2+10
6. determine the equationof g(x) thatresultsfromtranslatingthe functionf(x)=(x+4)2tothe right 5
units
a. g(x)=(x-1)2
b. g(x)=(x+9)2
c. g(x)=(x+4)2-5
d. g(x)=(x+4)2+5
7. selectthe approximate value of x thatare solutiontof(x)=0,whenf(x)=.6x2+9x+9
a.(-0.67,1.00)
b.(-6,9)
c.(-1.50,-1.50)
d.(-0.69,2.19)
8. selectthe approximate valuesof x thatare solutionstof(x)=0,when
F(x)=.9x2+3x+3
a. (0.77,-0.43)
b.(-9,3)
c.(-0.33,-0.33)
d.(-3.00,1.00)
http://www.justquestionanswer.com/viewanswer_detail/1-solve-for-x-in-the-equation-x2-6x-27-0-a-3-
9-b-3-20176
