Final

simplify

100

(8x^3)(2x^5)

16^8

200

(3yx^3)(6xz)

18x^2y z

300

(3a^3)(-5a^4)(2a^2)

-30a^9

400

-n-5(-6-7n)

34n + 30

500

7(8x+7)+3x

59x+49

simplify part 2

100

2(x-7)

2x-14

200

2x(x+20)

2x^2+40x

300

7x(6x+4y)

42x^2+28xy

400

2(2x+3)

4x+6

500

8(x+6)+10-3x

5x+58

identify the dimensions

100

[ 4  1  9 ] 

[-3 -6 12]

2 x 3

200

[ 1 -1 -1 ]

[ 4 -3  2 ]

[ 2  -2  3 ]

3 x 3

300

[ -1 ]

[ 16 ]

[ 5 ]

3 x 1

400

[ 2  9  6  4  7 ]

[-6 -8 4 -2  5 ]

[ 5  7 3 -9  -8 ]

3 x 5

500

[ 2 3 ]

[ 8 6 ]

2 x 2

linear equations

100

2x+3y=7

x-y=1

y= 1

x= 2

200

2x-5y=18

7x+y=26

y= -2

x= 4

300

2x+4y=-8

3x-5y=21

y=-3

x=2

400

5x-3y=0

2x+y=-10

y=-5

x=2.5

500

5x+y=6

3x-4y=22

y=-4

x=2

Extra credit

100

2+2=?

4

200

16 divided by 4

=4

300

1560+120-220-16+20= ?

1464

400

488 divided by 4

122

500

square root of 16

4