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### Proper, Improper and Mixed Fractions

### Fractional Arithmetic

### Changing the Subject of an Expression

### Multiplying Expressions

Ex. 0:

(-12 x + -15) ( 17 x + 2)

=

-204 x

^{2}+ -279 x + -30Ex. 1:

(16 x + 3) ( 6 x + 16)

=

96 x

^{2}+ 274 x + 48Ex. 2:

(18 x + 4) ( 18 x + 3)

=

324 x

^{2}+ 126 x + 12Ex. 3:

(7 x + -4) ( 17 x + 15)

=

119 x

^{2}+ 37 x + -60Ex. 4:

(-3 x + -4) ( 3 x + 14)

=

-9 x

^{2}+ -54 x + -56Ex. 5:

(-5 x + 11) ( -3 x + -7)

=

15 x

^{2}+ 2 x + -77Ex. 6:

(-19 x + -4) ( -8 x + 13)

=

152 x

^{2}+ -215 x + -52Ex. 7:

(-8 x + -10) ( -17 x + 0)

=

136 x

^{2}+ 170 x + 0Ex. 8:

(-6 x + 19) ( -18 x + -9)

=

108 x

^{2}+ -288 x + -171Ex. 9:

(3 x + 7) ( -13 x + 1)

=

-39 x

^{2}+ -88 x + 7