Activity 2: Perform the indicated operations. Show your solutions to receive full credit. A. Given f(x) = x2 + 3x + 4; g(x) = x + 2; h(x) = x + 3 and i(x) = 3x2 + 5x + 4, find the following:
1. f(x) + i(x)
2. g(x).h(x)
3. i(x)-f(x)
4. i(x)h(x)
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Answer:
9x⁴+63x²+104
Step-by-step explanation:
1. f(x) + i(x)
f(x)=x²+3x+4 ; i(x)= 3x²+5+4
= (3x²+5+4)² + 3(3x²+5+4)+4
=9x⁴+54x²+81+9x²+15+4+4
=9x⁴+54x²+9x²+81+15+4+4
=9x⁴+63x²+104