Question

4x
`4x^(2) -10=186`

Answer 1

Hi there!

Simplify th' Eqⁿ :-

4x² - 10 = 186

4x² = 186 + 10

4x² = 196

x² =
`\frac {196}{4}`

x² = 49

x = ±
`\sqrt {49}`

x = ± 7

Hence,
The required solⁿ of the eqn. are. 7 and -7

~ Hope it helps!

Answer 2

Hey there!

I suppose you mean the following.

`4x^(2) -10=186`, solve for x.

Let's start solving this equation step by step!
First add 10 to both sides of the equation.

`4 {x}^(2) = 196`

Now divide both sides of the equation by 4, in order to isolate the variable.

`{x}^(2) = 49`

And finally, to find our solutions we need to take the root of both sides. Don't forget to include the negative answer!

`x = √(49) \: \: or \: \: x = - √(49)`

Simplify the roots.

`x = 7 \: \: or \: \: x = - 7`

~ Hope this helps you!