MCQ
$5x^2+ 8x + 4 = 2x^2+ 4x + 6$ is $a$ :
- ✓Quadratic equation
- BLinear equation
- CConstant
- DCubic equation
✓
Answer
Correct option: A.
Quadratic equation
Given : $ 5 x^2+8 x+4=2 x^2+4 x+6 $
$ \Rightarrow 5 x^2-2 x^2+8 x-4 x+4-6 $
$ \Rightarrow 3 x^2+4 x-2=0 $
Here, the degree is $2,$
$\therefore$ it is a quadratic equation.
$ \Rightarrow 5 x^2-2 x^2+8 x-4 x+4-6 $
$ \Rightarrow 3 x^2+4 x-2=0 $
Here, the degree is $2,$
$\therefore$ it is a quadratic equation.
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