Get detailed and accurate answers to your questions on IDNLearn.com. Get accurate and comprehensive answers to your questions from our community of knowledgeable professionals.

The functions [tex]f[/tex] and [tex]g[/tex] are defined as follows:
[tex]\[ f(x) = -3x^3 - 2 \][/tex]
[tex]\[ g(x) = 3x - 3 \][/tex]

Find [tex]f(-4)[/tex] and [tex]g(-6)[/tex].


Sagot :

To find the values of [tex]\(f(-4)\)[/tex] and [tex]\(g(-6)\)[/tex] given the functions [tex]\(f(x) = -3x^3 - 2\)[/tex] and [tex]\(g(x) = 3x - 3\)[/tex], let's proceed step-by-step.

### Step 1: Calculate [tex]\( f(-4) \)[/tex]
The function [tex]\( f(x) \)[/tex] is defined as:
[tex]\[ f(x) = -3x^3 - 2 \][/tex]

Substitute [tex]\( x = -4 \)[/tex]:
[tex]\[ f(-4) = -3(-4)^3 - 2 \][/tex]

Calculate [tex]\( (-4)^3 \)[/tex]:
[tex]\[ (-4)^3 = -64 \][/tex]

Now, substitute [tex]\( -64 \)[/tex] back into the equation:
[tex]\[ f(-4) = -3(-64) - 2 \][/tex]

Multiply [tex]\( -3 \)[/tex] by [tex]\( -64 \)[/tex]:
[tex]\[ -3 \times -64 = 192 \][/tex]

Finally, subtract 2:
[tex]\[ f(-4) = 192 - 2 = 190 \][/tex]

So, [tex]\( f(-4) = 190 \)[/tex].

### Step 2: Calculate [tex]\( g(-6) \)[/tex]
The function [tex]\( g(x) \)[/tex] is defined as:
[tex]\[ g(x) = 3x - 3 \][/tex]

Substitute [tex]\( x = -6 \)[/tex]:
[tex]\[ g(-6) = 3(-6) - 3 \][/tex]

Calculate [tex]\( 3 \times -6 \)[/tex]:
[tex]\[ 3 \times -6 = -18 \][/tex]

Finally, subtract 3:
[tex]\[ g(-6) = -18 - 3 = -21 \][/tex]

So, [tex]\( g(-6) = -21 \)[/tex].

### Conclusion
After calculating both expressions, we find:
[tex]\[ f(-4) = 190 \][/tex]
[tex]\[ g(-6) = -21 \][/tex]

Thus, the values are:
[tex]\[ f(-4) = 190 \][/tex]
[tex]\[ g(-6) = -21 \][/tex]
Thank you for joining our conversation. Don't hesitate to return anytime to find answers to your questions. Let's continue sharing knowledge and experiences! For trustworthy answers, visit IDNLearn.com. Thank you for your visit, and see you next time for more reliable solutions.