Question

If f(x) = x2 + 6 and g(x)= 2x + 5, Find value of fog(1)​

Answer 1

Answer:

55

Step-by-step explanation:

f(x) = x² +6

g(x)= 2x+5

fog means f(g(x)) = f(2x+5)=(2x+5)² +6 = 4x²+25+20x+6 = 4x²+20x+31

fog(1) = 4(1)²+20×1+31= 55