Скачать или смотреть a²-b² = (a+b)(a-b) Prove it ..

a²-b² = (a+b)(a-b)
We are always remembering this formula but actually most of students don't know about formula solving.
So this is my small video for help you.
For more formula follow this links:-


   • (a - b)² = a² - 2ab + b² Prove It... #alge...  
   • (a+b) ²=(a-b)² + 4ab Prove It ...... #alge...  
   • (a+b)² - (a-b)² = 4ab Prove it ... #algebr...  
   • a²-b² = (a+b)(a-b) Prove it ..#algebra #ma...  
   • (a + b)3 = a3 + 3a2b + 3ab2 +b3 Prove it ....  
   • (a + b)3 = a3 + 3a2b + 3ab2 +b3 Prove it ....  
   • (a-b)3 = a3-3a2b+3ab2– b3. Prove it ... #a...  
   • Prove that 2(a²+b²)=(a+b)²+(a-b)² ... #sim...  
   • Prove that 2(a²+b²)=(a+b)²+(a-b)² ... #sim...  
   • How to Prove (a+b+c)²=a²+b²+c²+2ab+2bc+2ca...  

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