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Given that 
f(x)=-4x,quad g(x)=x-2 and 
h(x)=2f(x+2)+2g(x), then what is the value of 
h(5) ?
Answer:

Given that f(x)=4x,g(x)=x2 f(x)=-4 x, \quad g(x)=x-2 and h(x)=2f(x+2)+2g(x) h(x)=2 f(x+2)+2 g(x) , then what is the value of h(5) h(5) ?\newlineAnswer:

Full solution

Q. Given that f(x)=4x,g(x)=x2 f(x)=-4 x, \quad g(x)=x-2 and h(x)=2f(x+2)+2g(x) h(x)=2 f(x+2)+2 g(x) , then what is the value of h(5) h(5) ?\newlineAnswer:
  1. Calculate f(5+2)f(5+2): First, we need to find the value of f(x)f(x) when xx is replaced by 5+25+2, which is f(5+2)f(5+2).\newlineCalculation: f(5+2)=4×(5+2)=4×7=28f(5+2) = -4\times(5+2) = -4\times7 = -28
  2. Calculate g(5)g(5): Next, we calculate the value of g(x)g(x) when xx is replaced by 55, which is g(5)g(5).\newlineCalculation: g(5)=52=3g(5) = 5 - 2 = 3
  3. Find h(5)h(5): Now, we will use the values of f(5+2)f(5+2) and g(5)g(5) to find h(5)h(5) using the given formula h(x)=2f(x+2)+2g(x)h(x)=2f(x+2)+2g(x).\newlineCalculation: h(5)=2f(5+2)+2g(5)=2(28)+2(3)=56+6=50h(5) = 2\cdot f(5+2) + 2\cdot g(5) = 2\cdot (-28) + 2\cdot (3) = -56 + 6 = -50

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