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Given f(x) = 2x³ + ax² − 3x + 1 and the divisor is (x+1), so c = -1.

Mathematics

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Step 1: Solve Question 1.
The remainder theorem states that if a polynomial f(x)f(x) is divided by (x−c)(x-c), the remainder is f(c)f(c).
Given f(x)=2x3+ax2−3x+1f(x) = 2x^3 + ax^2 - 3x + 1 and the divisor is (x+1)(x+1), so c=−1c = -1.
The remainder is given as −2-2.
Therefore, f(−1)=−2f(-1) = -2.
Substitute x=−1x=-1 into f(x)f(x):

f(−1)=2(−1)3+a(−1)2−3(−1)+1f(-1) = 2(-1)^3 + a(-1)^2 - 3(-1) + 1
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