Question

Tìm x:

\(2x\left(5-x\right)+2x^2-10=0\)

Answer 1

2x.(5-x)+2x²-10=0

<=>10x-2x²+2x²-10=0

<=>10x-10=0

<=>10x=10

<=>x=1

Answer 2

=> 10x-2x²+2x²-10=0
=> 10(x-1)=0
=> x-1=0
=> x=1

Answer 3

=>10x-2x^2+2x^2-10=0

=>10.(x-1)=0

=>x-1=0

=>x=1

tick nha !!!