If F(x) = x² + 5x and G(x) = 2x + 1, find F(5) + G(6).
Question
If F(x) = x² + 5x and G(x) = 2x + 1, find F(5) + G(6).
Solution
To find F(5), we substitute x = 5 into the equation F(x) = x² + 5x:
F(5) = (5)² + 5(5) = 25 + 25 = 50
To find G(6), we substitute x = 6 into the equation G(x) = 2x + 1:
G(6) = 2(6) + 1 = 12 + 1 = 13
Finally, to find F(5) + G(6), we add the values we found:
F(5) + G(6) = 50 + 13 = 63
Therefore, F(5) + G(6) equals 63.
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