Answer:
f[g(x)]= 7x + 27
Step-by-step explanation:
g(x) = x + 2,
f(x) = 7x + 13,
f[g(x)] means you substitute the value of g(x) into the variable of f(x);
Which is 7( x+2) + 13 = 7x +14 +13
= 7x + 27
Answer:
your answer is gonna be D!
Step-by-step explanation:
2x
2
+16x−7x−56
2 Collect like terms.
2{x}^{2}+(16x-7x)-56
2x
2
+(16x−7x)−56
3 Simplify.
2{x}^{2}+9x-56
2x
2
+9x−56
Answer:
The answer is 21
Step-by-step explanation: You substitue 3 for C and 4 for D and craete the equation 
so you add 3+4=7 and you get 
which is 7 times 3 =21
