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GCF
#1

Find the GCF:  15x3, 135x8, 225x4

15x3

#2

Factor out the GCF:  100x2+50x

50x(2x+1)

#3

Find the GCF:  64x8y2, 40x5y8

8x5y2

#4

Factor out the GCF:  2u2+80t2

2(u2+40t2)

#5

Find the GCF:  x3y4z5,  x5y4z3,  x4y3z5

x3y3z3

Multiply/Simplify
#1

Combine like terms:  5x7-8x7

-3x7

#2

Multiply and simplify:  -4x(7x-8)

-28x2+32x

#3

Multiply and simplify:  (4x+4)(x+3)

4x2+16x+12

#4

Combine like terms:  15x8+7x4+x8-10x8

6x8+7x4

#5

Multiply and simplify:  (3x-2)(3x+2)

9x2-4

Factoring
#1

Factor:  3x2-9x

3x(x-3)

#2

Factor: m2-49

(m+7)(m-7)

#3

Factor:  5x2-5x-30

5(x+2)(x-3)

#4

Factor:  xy3-2y2+3xy-6

(xy-2)(y2+3)

#5

Factor:  27x3-9x2+15x

3x(9x2-3x+5)

Solving Polynomials
#1

Solve:  2(x+4)=0

x=-4

#2

Solve:  (y+2)(y-3)=0

y=-2,3

#3

Solve:  -5x(x-5)(x+5)=0

x=0,5,-5

#4

Solve:  x2+2x+1=0

x=-1

#5

Solve:  r2-100=0

r=-10,10

Rational Functions
#1

Find domain:         x2-3x+2 / x2-4

 

{x|x is all reals and x≠2,-2}

#2

Find domain:  x/5

{x|x is all reals}

#3

Find domain:  x-6 / -6-x

{x|x is all reals and x≠-6}

#4

Simplify:  x-6 / 6-x  

-1

#5

Multiply:  x2-9 / x2-4x+3  •  x2-1 / x+3

x+1

Final Question