cancankitty
cancankitty cancankitty
  • 02-06-2020
  • Mathematics
contestada

Need answer ASAP please!! Will give brainliest!

Solve each equation by taking square roots.

1. 6r^2=-108

2. 9p^2-8=-58

Need answer ASAP please Will give brainliest Solve each equation by taking square roots 1 6r2108 2 9p2858 class=

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 07-06-2020

Answer:

  15)  A) {3i√2, -3i√2}

  16)  C) {5i√2/3, -5i√2/3}

Step-by-step explanation:

15)

  [tex]6r^2=-108\\\\r^2=\dfrac{-108}{6}=-18\\\\r=\pm\sqrt{-18}\\\\\boxed{r=\pm3i\sqrt{2}}[/tex]

__

16)

  [tex]9p^2-8=-58\\\\9p^2=-50\qquad\text{add 8}\\\\p^2=-\dfrac{50}{9}\qquad\text{divide by 9}\\\\p=\pm\sqrt{-\dfrac{50}{9}}\qquad\text{take the square root}\\\\\boxed{p=\pm\dfrac{5\sqrt{2}}{3}}[/tex]

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