How do you simplify sqrt(4x^2 + 9x^4 + 16)?

1 Answer
Jul 24, 2018

3x^2 + 2x + 4

Explanation:

sqrt(4x^2 + 9x^4 + 16)

Using PEMDAS

Exponent

(4x^2 + 9x^4 + 16)^(1/2)

Reducing;

(2^2x^2 + 3^2x^4 + 4^2)^(1/2)

(2^2x^2 + 3^2x^(2(2)) + 4^2)^(1/2)

Multiplication

Multiplying via by the exponent;

(2^(2 xx 1/2) x^(2 xx 1/2) + 3^(2 xx 1/2)x^(2(2 xx 1/2)) + 4^(2 xx 1/2))

Simplifying;

2^1 x^1 + 3^1x^(2(1)) + 4^(1)

2x + 3x^2 + 4

Rearranging;

3x^2 + 2x + 4 -> "Simplified"