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meababy2009ow9ewa
25.06.2019 •
Mathematics
If f(x) = 3x-2 and g(x)= x^2 +1, find (f+g)(x).
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Ответ:
It's choice D.
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
= 3x - 2 + x^2 + 1
= x^2 + 3x - 1.
Ответ:
D. x^2+3x-1
Step-by-step explanation:
You have:
f(x) = 3x-2
g(x)= x^2 +1
Then:
(f+g)(x)=f(x)+g(x)
(f+g)(x)=(3x-2)+(x^2+1)
(f+g)(x)=3x-1+x^2 (-2+1=-1)
(f+g)(x)=x^2+3x-1 (ordering terms)
Ответ:
We use the first term of the first bracket to multiply all of the second bracket and use the second term of the first bracket to multiply all of second bracket again
-3s(4s - t) + 2t(4s - t)
= -12s² + 3st + 8st - 2t²
= -12s² +11st - 2t²