se Ho a)Solve 3x2 #21. a) What are the solutions? The solution(s) is/are x=L (Si

Question

se Ho a)Solve 3x2 #21. a) What are the solutions? The solution(s) is/are x=L (Simplify your answer. Type an exact answer, using radicals as needed. Express ework b) Find the x-intercepts of(x)-3x2-21 zes & complex numbers in terms of i. Use a comma to separate answers as needed.) b) What are the x-intercepts? Select the correct choice below and,if necessary,f in the answer box to complete your choice. 14 pter Co dent ls for S Use a comma to separate answers as needed.) O B. There are no x-intercepts ourse Too 100%

Explanation / Answer

3x^2 - 21 = 0

taking out the gcf

3 ( x^2 - 7 ) = 0

x^2 - 7 = 0

x^2 = 7

x = + - sqrt 7

solution of x are ( + sqrt 7 , - sqrt 7 )

x intercepts are ( + sqrt 7 , 0 ) and ( - sqrt 7 , 0 )

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