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a story of ratios
lesson 4
703
exercise 3
for each expression, write each sum as a product of two factors. emphasize the importance of the distributive property.
use various equivalent expressions to justify equivalency.
a. 2.3+5.3
b. (2 + 5) + (2 + 5) + (2 + 5) c. 2.2 + (5 + 2) + (5.2)
e.
(x + 5) + (x + 5) + (x + 5)
f.
d. x3 + 5.3
2x + (5 + x) +5.2