(1.4.1) Evaluate each of the following first by computing the expression inside the parentheses, then by using the distributive property to expand the product.
For example,
2 x (8 - 3) = 2 x 5 = 10
2 x (8 - 3) = 2 x 8 - 2 x 3 = 16 - 6 =10
6 x (3 + 5)
(4 +8) x (-2)
7 x (5 - 2)
(8 - 13) x (-3)
(1.4.2) Richard expanded the product (-2) x (5 - 3) like this
(-2) x (5 - 3)=
(-2) x 5 + (-2) x (3) =
-10 + (-6) =
-16
(1.4.3a)
(1.4.3b)
(1.4.3c)
(1.4.3.d)
(1.4.4) Evaluate
by factoring the numerator first.
(1.4.5a) Simply the following fractions by canceling common terms:
(1.4.5b)