QuestionAugust 24, 2025

Evaluate the expression for x=-3 4x^2+2x^4-x square

Evaluate the expression for x=-3 4x^2+2x^4-x square
Evaluate the expression for x=-3 4x^2+2x^4-x square

Solution
4.5(225 votes)

Answer

201 Explanation 1. Substitute x = -3 into the expression Replace x with -3: 4(-3)^{2} + 2(-3)^{4} - (-3). 2. Calculate powers of -3 (-3)^2 = 9 and (-3)^4 = 81. 3. Evaluate each term 4 \times 9 = 36, 2 \times 81 = 162, and -(-3) = 3. 4. Sum the results 36 + 162 + 3 = 201.

Explanation

1. Substitute $x = -3$ into the expression<br /> Replace $x$ with $-3$: $4(-3)^{2} + 2(-3)^{4} - (-3)$.<br />2. Calculate powers of $-3$<br /> $(-3)^2 = 9$ and $(-3)^4 = 81$.<br />3. Evaluate each term<br /> $4 \times 9 = 36$, $2 \times 81 = 162$, and $-(-3) = 3$.<br />4. Sum the results<br /> $36 + 162 + 3 = 201$.
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