Question

Which expression is equivalent to this polynomial? 4x^2 + 27

A. (2x + 3(square root of 3i))(2x-3(square root of 3i))
b(2x+9i)(2x-3i)
c(2x+ 3(square root of 3))^2
d(2x+3(square root of 3))(2x-3(square root of 3))

Answer 1

As, given equation is,

`4x^2+27`

Now just take the options one by one .we will simply do the product and we will see which option will give us the equation

`4x^2+27`

Lets take 1st option which is,

`(2x+3\sqrt[]{3}i)(2x-3\sqrt[]{3}i)`

i is complex number here.

Now the product is