What could be the value of x in the following equation? Select all that apply. x^2 = 49 Multi-select Choices: (A)7 (B)-7 (C)sqrt 49 (D)-sqrt 49

Understand the equation: Step 1: Understand the equation. We have x^2 = 49. This means x multiplied by itself gives 49.Solve for x: Step 2: Solve for x. To find x, take the square root of both sides of the equation. x = ±sqrt(49)Calculate the square root: Step 3: Calculate the square root. sqrt(49) = 7 So, x can be 7 or -7.Check the choices given: Step 4: Check the choices given. (A) 7 - Correct, matches our solution. (B) -7 - Correct, matches our solution. (C) sqrt(49) - Incorrect, because we need the numerical value. (D) -sqrt 49 - Incorrect, because we need the numerical value.

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What could be the value of $x$ in the following equation? Select all that apply. $\newline$ $x^2 = 49$ $\newline$ Multi-select Choices: $\newline$ (A) $7$ $\newline$ (B) $-7$ $\newline$ (C) $\sqrt{49}$ $\newline$ (D) $-\sqrt{49}$

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Math Problems

Algebra 2

Sin, cos, and tan of special angles

Full solution

Q. What could be the value of

x

in the following equation? Select all that apply.

\newline

x^2 = 49

\newline

Multi-select Choices:

\newline

(A)

7

\newline

(B)

-7

\newline

(C)

\sqrt{49}

\newline

(D)

-\sqrt{49}

Understand the equation: Step $1$ : Understand the equation. $\newline$ We have $x^2 = 49$ . This means $x$ multiplied by itself gives $49$ .
Solve for x: Step $2$ : Solve for x. $\newline$ To find x, take the square root of both sides of the equation. $\newline$ $x = \pm\sqrt{49}$
Calculate the square root: Step $3$ : Calculate the square root. $\newline$ $\sqrt{49} = 7$ $\newline$ So, $x$ can be $7$ or $-7$ .
Check the choices given: Step $4$ : Check the choices given. $\newline$ (A) $7$ - Correct, matches our solution. $\newline$ (B) $-7$ - Correct, matches our solution. $\newline$ (C) $\sqrt{49}$ - Incorrect, because we need the numerical value. $\newline$ (D) $-\sqrt{49}$ - Incorrect, because we need the numerical value.