SOLUTION: i really need help on doing problems like this one (y+9)(5x-6) so if could help me i would really like it so much

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Question 182639This question is from textbook
: i really need help on doing problems like this one (y+9)(5x-6) so if could help me i would really like it so much This question is from textbook

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

%28y%2B9%29%285x-6%29 Start with the given expression.


Now let's FOIL the expression.


Remember, when you FOIL an expression, you follow this procedure:


%28highlight%28y%29%2B9%29%28highlight%285x%29-6%29 Multiply the First terms:%28y%29%285x%29=5xy.


%28highlight%28y%29%2B9%29%285x%2Bhighlight%28-6%29%29 Multiply the Outer terms:%28y%29%28-6%29=-6y.


%28y%2Bhighlight%289%29%29%28highlight%285x%29-6%29 Multiply the Inner terms:%289%29%285x%29=45x.


%28y%2Bhighlight%289%29%29%285x%2Bhighlight%28-6%29%29 Multiply the Last terms:%289%29%28-6%29=-54.


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So we have the terms: 5xy, -6y, 45x, -54


5xy-6y%2B45x-54 Now collect every term listed above to make a single expression.


So %28y%2B9%29%285x-6%29 FOILs to 5xy-6y%2B45x-54.


In other words, %28y%2B9%29%285x-6%29=5xy-6y%2B45x-54.