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(a+b)²
-(a - b)²
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a2+2ab+b2 - (a2-2ab+b2)
a2+2ab+b2 - a2 +2ab - b2
=4ab
Answered by
2
Answer: 4ab
Step-by-step explanation:
(a + b)² = a² + 2ab + b²
(a - b)² = a² - 2ab + b²
(a + b)² - (a - b)²
= a² + 2ab + b² - ( a² - 2ab + b²)
= a² + 2ab + b² - a² + 2ab - b²
= 4ab
Hop it helps you :)
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