Maths Puzzle
Algebra
Let f(x)= -2x, g(x)= x(to the second power) + 2, h(x)= 4x + 3
1. (f+g)(x)
2. (g-h)(x)
Read Solution (Total 1)
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- we can write (f+g)(x) = f(x)+g(x)
or (g-h)(x)=g(x)-h(x)
now
1. (f+g)(x)= f(x)+g(x)
= -2x+x^2 + 2
2. (g-h)(x)=g(x)-h(x)
x^2 + 2-4x+3
x^2 -4x+5
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