134,746 views
18 votes
18 votes
9/8x²+2x-15 - 5/2x³+3x + 4/4x²-5x​

User James McCormack
by
2.9k points

1 Answer

11 votes
11 votes

Answer:


-(5)/(2) x^(3) +(17)/(8) x^(2) -15

Explanation:

First combine like terms so for numbers with x^3 you have one:

-
(5)/(2) x^(3)

Then x^ 2


(9)/(8)x^(2) +x^(2)

(4/4x^2 is just x^2 because 4/4 is 1)

So


(17)/(8) x^(2)

Then all numbers with x cancel out because

2x+3x-5x is 0.

Then you just have -15.

So put them back together to get what I wrote in the answer.

Hope that helps lmk if I calculated that wrong!

User Mavis
by
3.0k points
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