Question: Q:3 a- If x 2 , 4 x + 3, 25 are in geometric sequence, find the values of x. b- The 9th term of

Q:3 a- If x2, 4 x + 3, 25 are in geometric sequence, find the values of x.

b- The 9th term of an A.P. is 30 and the 17th term is 50. Find the first three terms.

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