Answer
± $\frac{3}{7}$
Work Step by Step
49$p^{2}$ - 16 = -7
Add 16 to both sides:
49$p^{2}$ - 16 + 16 = -7 + 16
49$p^{2}$ = 9
Divide both sides by 49:
$\frac{49p^{2}}{49}$ = $\frac{9}{49}$
$p^{2}$ = $\frac{9}{49}$
Take the square root of both sides to get p by itself:
$\sqrt p^{2}$ = $\sqrt \frac{9}{49}$
p = ± $\frac{3}{7}$
