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Evaluate the following algebraic expression for the given value of .
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1. Review of Real Numbers
Evaluating Expressions
Multiple Choice
Evaluate the following algebraic expression for the given value of .
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Identify the given algebraic expression and the value of the variable: the expression is \(x^2 + 4x + 6\) and the value given is \(x = -2\).
Substitute the value \(x = -2\) into the expression, replacing every \(x\) with \(-2\): write \((-2)^2 + 4(-2) + 6\).
Calculate each term separately: first, compute \((-2)^2\), then calculate \(4 \times (-2)\), and keep the constant term \(6\) as is.
Add the results of the three terms together: sum the value of \((-2)^2\), the product \(4(-2)\), and \(6\).
The final sum you get after adding these values is the value of the expression when \(x = -2\).
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