Answer:
[tex]12[/tex] is the answer
Step-by-step explanation:
Given
[tex]x = 5[/tex]
Required
Evaluate
[tex]3(x + 4) + 2x - x^2[/tex]
To answer this question, we simply substitute 5 for x in [tex]3(x + 4) + 2x - x^2[/tex]
[tex]3(x + 4) + 2x - x^2[/tex] becomes
[tex]3(5 + 4) + 2*5 - 5^2[/tex]
[tex]3(9) + 10 - 25[/tex]
Open all brackets
[tex]3*9 + 10 - 25[/tex]
[tex]27 + 10 - 25[/tex]
[tex]12[/tex]
