Math, asked by lalbahadursubba7752, 9 months ago

Solve x²-(2a+b)x+2ab=0 by quadratic formula for x

Answers

Answered by xacku
1

Answer:

Step-by-step explanation:

x2-(2a+b)x+2ab=0

D=(2a+b)²-4*2ab=4а²+4аb+b²-8ab=4а²-4аb+b²=(2a-b)²

x₁= ((2a+b)-|2a-b| ):2

x₂((2a+b)+|2a-b| ):2

Значение модуля неизвестно, т.к. нет условия на 2а и b.

Если 2а>b, то 2a-b>0 и |2a-b|=2a-b

Если 2а<b, то 2a-b <0 и |2a-b|=-2a+b

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