A=3 b=5 a*b=? What's the value of a *b
Answers
Answered by
1
(a+b)² = a² + b² + 2ab
(3+5)² = 3² + 5² + 2ab
8² = 9 + 25 + 2ab
64 = 34 + 2ab
64 - 34 = 2ab
30 = 2ab
30 / 2 = ab
15 = ab
therefore the value of ab is 15
i hope that this will help u..................^_^
(3+5)² = 3² + 5² + 2ab
8² = 9 + 25 + 2ab
64 = 34 + 2ab
64 - 34 = 2ab
30 = 2ab
30 / 2 = ab
15 = ab
therefore the value of ab is 15
i hope that this will help u..................^_^
Answered by
2
(a+b)square = a square + b square + 2ab……
(3+5)square= 3square+ 5square+ 2ab………
64 = 9 + 25 + 2ab……
64 = 34 + 2ab…….
64 - 34 = 2ab…..…
30 = 2ab………
30 / 2 = ab………
15 = ab
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