Question

m6|l15 equivalent exponential expressions which is a solution to $7 + a^2 = 16$? $a = 1$ $a = 2$ $a = 3$ $a = 4$

Explanation:

Step1: Isolate the squared term

Subtract 7 from both sides.
$7 + a^2 - 7 = 16 - 7$
$a^2 = 9$

Step2: Solve for $a$

Take square root of both sides.
$a = \pm\sqrt{9} = \pm3$

Step3: Match with options

Identify the valid option from choices.

Answer:

$a = 3$