Question

1. \fifteen more than a number squared is 19.\

Explanation:

Step1: Define variable and equation

Let the number be $x$. Equation: $x^2 + 15 = 19$

Step2: Isolate $x^2$

Subtract 15: $x^2 = 19 - 15 = 4$

Step3: Solve for $x$

Take square roots: $x = \pm\sqrt{4} = \pm2$

Answer:

$x = 2$ or $x = -2$