4(a - b) square - (c - d) square
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0
Answer:
4(a-b)²-(c-d)²
= 4(a²-2ab+b²)-(c²-2cd+d²)
Answered by
1
Answer:
4(a-b)² - (c-d)²
=4 [(a²+b² - 2ab) - (c²-d²-2ab)]
=4[a²+b²-c²+d²]
=4a²+4b²-4c²+4d²
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