Question

Is 5 a solution to the equation 2x2 + 10 = 60?

Answer 1

Yes.

Explanation:

`2(5)^2+10=2(25)+10=50+10=60`

Answer 2

As per the problem given equation is,

`(\396.32 - \250) = \146.32`

`\Rightarrow 2 * x^(2)-60+10=0` (//substituting all at left)

`\Rightarrow 2 * x^(2)-50=0`

`\Rightarrow 2 * x^(2)=50`

`\Rightarrow x^(2)=\left((50)/(2)\right)`

`\Rightarrow x^(2)=25`

So the value of x can be 5 and -5.

Hence one value of x can be 5 (proved).