show that (7a-5b)² + 140ab=(7a+5b)² using identity
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6
(7a-5b)² + 140ab = (7a+5b)²
49a² + 25b² - 70ab + 140ab = 49a²+25b² +70ab
49a² + 25b² - 70ab + 140ab - 49a²-25b² - 70ab = 0
0 = 0
49a² + 25b² - 70ab + 140ab = 49a²+25b² +70ab
49a² + 25b² - 70ab + 140ab - 49a²-25b² - 70ab = 0
0 = 0
Answered by
1
Answer:
are u study in class 8
which school you are studying
your exam is over or not
I think yesterday's your maths exam is over ,right or not
Step-by-step explanation:
pls tell
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