How is the answer 6 when I keep getting the answer 9.16

Question

asked Jan 2, 2022 8.3k views

1 Answer

Jasonflaherty · Answer 1 · 2022-01-08T12:44:24+0000

Answer:

The value of given expression is 6.

Explanation:

Given expression is;

√(5x^2-(-x^4))

We have to solve the expression when x = -2

Putting x = -2 in the given expression,

Solution =
$√(5(-2)^2-(-(-2)^4)))\\$

Solution =
$\sqrt{5(4) - (-16)$

Solution =
√(20+16)

Solution =
√(36)

Taking square root of 36

Solution = 6

Thus,

√(5x^2-(-x^4)) = 6

Hence,

The value of given expression is 6.