Find the Domain of the Composition f(g(h(x))) f(x)=x^3-x^2+10 g(x)=3x^2+2x-10 h(x)=2x^3+2x^2-3x

$f (x) = x^{3} - x^{2} + 10$ $g (x) = 3 x^{2} + 2 x - 10$ $h (x) = 2 x^{3} + 2 x^{2} - 3 x$

Step 1

Set up the composite result function.

$f (g (h (x)))$

Step 2

Evaluate $f (g (2 x^{3} + 2 x^{2} - 3 x))$ by substituting in the value of $h$ into $g$ .

$f (g (2 x^{3} + 2 x^{2} - 3 x)) = f (3 {(2 x^{3} + 2 x^{2} - 3 x)}^{2} + 2 (2 x^{3} + 2 x^{2} - 3 x) - 10)$

Step 3

Evaluate $f (3 {(2 x^{3} + 2 x^{2} - 3 x)}^{2} + 2 (2 x^{3} + 2 x^{2} - 3 x) - 10)$ by substituting in the value of $g$ into $f$ .

$f (3 {(2 x^{3} + 2 x^{2} - 3 x)}^{2} + 2 (2 x^{3} + 2 x^{2} - 3 x) - 10) = {(3 {(2 x^{3} + 2 x^{2} - 3 x)}^{2} + 2 (2 x^{3} + 2 x^{2} - 3 x) - 10)}^{3} - {(3 {(2 x^{3} + 2 x^{2} - 3 x)}^{2} + 2 (2 x^{3} + 2 x^{2} - 3 x) - 10)}^{2} + 10$

Step 4

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${x | x \in ℝ}$

Step 5

Find the Domain of the Composition f(g(h(x))) f(x)=x^3-x^2+10 g(x)=3x^2+2x-10 h(x)=2x^3+2x^2-3x

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