The problem asks to evaluate the expression $(-5 + \sqrt{-4}) + (3 - \sqrt{-16})$.

AlgebraComplex NumbersImaginary NumbersArithmetic Operations
2025/3/7

1. Problem Description

The problem asks to evaluate the expression (5+4)+(316)(-5 + \sqrt{-4}) + (3 - \sqrt{-16}).

2. Solution Steps

First, we simplify the square roots of negative numbers.
4=41=2i\sqrt{-4} = \sqrt{4} \cdot \sqrt{-1} = 2i
16=161=4i\sqrt{-16} = \sqrt{16} \cdot \sqrt{-1} = 4i
Now, substitute these values back into the original expression:
(5+2i)+(34i)(-5 + 2i) + (3 - 4i)
Next, we combine the real and imaginary parts separately:
(5+3)+(2i4i)(-5 + 3) + (2i - 4i)
22i-2 - 2i

3. Final Answer

22i-2 - 2i

Related problems in "Algebra"

The image presents a set of quadratic equations that need to be solved by factoring. I will solve pr...

Quadratic EquationsFactorizationSolving Equations
2025/6/4

The problem is to solve the quadratic equation $7x^2 + 42x - 49 = 0$ by factoring.

Quadratic EquationsFactoringEquation Solving
2025/6/4

The problem asks us to compute the first five terms of the sequence {$c_n$} defined by the formula $...

SequencesArithmetic SequencesFormula Evaluation
2025/6/4

We are asked to solve the equation $-x - 2 = 0$ for $x$.

Linear EquationsSolving EquationsVariables
2025/6/4

We are asked to solve the following quadratic equations by factoring: 3) $6a^2 - 18a - 108 = 0$ 4) $...

Quadratic EquationsFactoringAlgebraic Manipulation
2025/6/4

The problem asks us to identify whether the coefficients of each given quadratic expression have a c...

Quadratic ExpressionsFactoringGreatest Common Divisor (GCD)
2025/6/4

We are asked to factor the quadratic $2x^2 + 12x + 16$ in two different ways, without starting from ...

Quadratic EquationsFactorizationAlgebraic Manipulation
2025/6/4

We are asked to solve the following quadratic equations: 5) $6m^2 + 12m - 48 = 0$ 6) $3x^2 - 15x - 1...

Quadratic EquationsFactoringSolving Equations
2025/6/4

We are asked to solve the quadratic equations in the image. Let's solve problem 5. The equation is $...

Quadratic EquationsFactoringSolving Equations
2025/6/4

The problem is to solve four equations: 1) $(6x+7)(x+1)=0$ 2) $7(n-4)(n-2)=0$ 3) $x^2+x-56=0$ 4) $x^...

Quadratic EquationsFactoringSolving EquationsRoots of Equations
2025/6/4