expand this Question ( 5c -4d)²
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5
(5c - 4d)²
By using identify :- (a-b)²= a²-2ab+b²
(5c)²-2(5c)(4d)+(4d)²
25c²-20cd+8d²
Answered by
2
=> (5c - 4d)²
By using identity: a² - 2ab + b²
=> (5c)² - 2(5c)(4d) + (4d)²
=> 25c² - 40cd + 16d²
I hope it helps you.
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