Saturday

October 25, 2014

October 25, 2014

Posted by **Bill** on Friday, January 11, 2013 at 11:05am.

- Math -
**Math Teach**, Friday, January 11, 2013 at 12:14pmFoil Left side gives you:

= a^2c^2 + a^2d^2 + b^2c^2 + b^2d^2

= (ac)^2 + (ad)^2 + (bc)^2 + (bd)^2

Foil Right side (ac+bd)^2

= ac x ac + ac x bd + ac x bd + bd x bc

= (ac)^2 + 1acbd + 1acbd + (bd)^2

Foil (ad-bc)^2

= ad x ad - bc x ad - bc x ad + bc x bc

= (ad)^2 - 1acbd - 1acbd + (bc)^2

Combine all terms on right side

left with (ac)^2 + (bd)^2 + (ad)^2 + (bc)^2

**Answer this Question**

**Related Questions**

math - if a & b are perpendicular vectors, show that a)(a+2b).(a-b)=|a|^2-2|b|^2...

math - Can someone please show us how to show 1500 x 2.1? I can not for the life...

math - a local television station sends out questionnaires to determine if ...

Math - Show work to determine if the relation is even, odd, or neither. f(|x...

Math - Dog show competitors Dog Breed. Number of Dogs Poodle. 35 German ...

algebra - Could you show me how to do these math systems and show your work so i...

math - please help with daughters homework show 25 broken key is 5 show in 3 ...

math - use your calculator.show 14. broken keyr is 1. show 2 ways

math - Using a calculator. show 14 broken key is 1 show 2 ways

Math - Can you show and easy way to show this formula in the form of an equation...