Question

Given that f(x)=13x^2+156, find x

Answer 1

Simplifying
f(x) = 13x2 + 156

Multiply f * x
fx = 13x2 + 156

Reorder the terms:
fx = 156 + 13x2

Solving
fx = 156 + 13x2

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.
f = 156x-1 + 13x

Answer 2

The value of x are
`x=2\sqrt3 i,-2\sqrt3 i`

Explanation:

Given : Function
`f(x)=13x^2+156`

To find : The value of x?

Solution :

To find the value of x we equation the function to 0,

i.e. f(x)=0

`13x^2+156=0`

Subtract 156 both side,

`13x^2=-156`

Divide by 13 both side,

`x^2=-(156)/(13)`

`x^2=-12`

Squaring both side,

`√(x^2)=√(-12)`

`x=\pm 2\sqrt3 i`

Therefore, The value of x are
`x=2\sqrt3 i,-2\sqrt3 i`