Solution 2.1:1a

From Förberedande kurs i matematik 1

(Difference between revisions)
Jump to: navigation, search
m (Robot: Automated text replacement (-[[Bild: +[[Image:))
m (Lösning 2.1:1a moved to Solution 2.1:1a: Robot: moved page)

Revision as of 08:30, 9 September 2008


Using the distributivity rule, we can multiply the factor \displaystyle 3x into the bracket \displaystyle (x-1) . Each term in \displaystyle (x-1) is then to be multiplied by \displaystyle 3x,

\displaystyle 3x(x-1)=3x\cdot x - 3x \cdot 1 = 3x^2-3x.