Question

Asked Aug 20, 2019

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x^{2}-4x-21=0

solution set is?

Step 1

Refer to the question, we have to find the value of x for the quadratic equation.

Step 2

To solve any quadratic equation ax^{2}+x+c = 0 use quadratic equation formula as,

Step 3

Substitute a=1 , b=-4 and c=-21 for the provided equat...

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