15x-20y ka hole squire ?
write step by step
plz...
Answers
Answered by
2
Answer:
225x² + 400y² -600xy
Step-by-step explanation:
(15x-20y)² = (15x)² + (20y)² - 2(15x)(20y) [ using identity (a-b)² = a²+b²-2ab ]
=> 225x² + 400y² - 600xy
Answered by
4
Step-by-step explanation:
(15x-20y)²=(15x)²+(20y)²-2(15x×20y)[(a-b)²=a²+b²-2ab]
225x²+400y²-2×300xy
225x²+400y²-600xy
hope it helps you.......
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