QuestionAugust 25, 2025

Evaluate the given polynomial for the indicated value of the variable. x^2+7x-1 for x=4 square

Evaluate the given polynomial for the indicated value of the variable. x^2+7x-1 for x=4 square
Evaluate the given polynomial for the indicated value of the variable.
x^2+7x-1 for x=4
square

Solution
4.1(259 votes)

Answer

43 Explanation 1. Substitute the value of x Replace x with 4 in the polynomial: x^2 + 7x - 1 becomes 4^2 + 7(4) - 1. 2. Calculate each term Compute 4^2 = 16, 7 \times 4 = 28, and -1 remains as is. 3. Sum the results Add the results: 16 + 28 - 1 = 43.

Explanation

1. Substitute the value of $x$<br /> Replace $x$ with 4 in the polynomial: $x^2 + 7x - 1$ becomes $4^2 + 7(4) - 1$.<br />2. Calculate each term<br /> Compute $4^2 = 16$, $7 \times 4 = 28$, and $-1$ remains as is.<br />3. Sum the results<br /> Add the results: $16 + 28 - 1 = 43$.
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