Question

Expand (5x-4)²


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Answer 1

Answer:

(5x-4)2

(5x)2+(4)2-2(5x)(4)

25x2+16-40x

Answer 2

$\underbrace \text{Answer:}$

Formula used:-

• (a-b)² = a²-2ab+b²

Solution:-

➛ (5x-4)²

➞ (5x)²-2.5x.4+(4)²

➞ 25x²-40x+16

$⛬ \text{The answer is \bf \pink{25x²-40x+ 16}}.$