complete the following to the solve equations 5x²+13+8=0 using formula​

2 thoughts on “complete the following to the solve equations 5x²+13+8=0 using formula​”

1. Step-by-step explanation:

   5x²+21=0

   5x²= -21

   5x² =-21/5

   x²= -42

   x*x=-42

   2x = -42

   x = – 42/2

   x= -21

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2. Answer:

   -4.2

   Step-by-step explanation:

   5x^2 + 13 + 8 = 0

   => 5x^2 + 21 = 0

   => 5x^2 = -21

   => x^2 = -21/5 = -4.2

   Reply