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najeezubair0666
27.01.2020 •
Mathematics
F(x)=3x^2+5
g(x)=4x-2
h(x)=x^2-3x+1
find f(x)+g(x)-h(x)
a.7x^2+x+4
b.2x^2+x+2
c.2x^2+7x+2
d.5x^2+4
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Ответ:
2x^2 + 7x + 2
Step-by-step explanation:
(3x^2 + 5) + (4x-2) - (x^2 - 3x + 1)
distribute the signs to the equations. subtraction on the last one is a little tricky because it turns all of the signs opposite. all subtraction in these kinds of problems is like this so you might want to watch out for this in the future. (:
distribute the signs to get:
3x^2 + 5 + 4x - 2 - x^2 + 3x - 1
simplify the equation. get all like variables together to get:
2x^2 + 7x + 2
Ответ:
0.1
Step-by-step explanation:
its out of 10