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Q5 Find the sum of the expression and combine like terms (2/5 x^2+1/4)+(2/5 x^3−1/5 x^2+5/8)
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GPT-5 mini
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Add corresponding terms:
x^3: 2/5 x^3
x^2: 2/5 x^2 − 1/5 x^2 = 1/5 x^2
constant: 1/4 + 5/8 = 2/8 + 5/8 = 7/8
So the sum is: 2/5 x^3 + 1/5 x^2 + 7/8.
x^3: 2/5 x^3
x^2: 2/5 x^2 − 1/5 x^2 = 1/5 x^2
constant: 1/4 + 5/8 = 2/8 + 5/8 = 7/8
So the sum is: 2/5 x^3 + 1/5 x^2 + 7/8.
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