If sx =(3x^2+2x), find the first term and common difrence of the ap

1.	If sx =(3x^2+2x), find the first term and common difrence of the ap
Answer» $\underline{\textsf{Given:}}$ $\textsf{Sum of first x terms of an A.P}$ $\mathsf{S_x=3x^2+2x}$ $\underline{\textsf{To <klux>FIND</klux>:}}$ $\textsf{First term and common ratio}$ $\underline{\textsf{Solution:}}$ $\textsf{Consider,}$ $\mathsf{S_x=3x^2+2x}$ $\textsf{For x=1,}$ $\mathsf{S_1=3(1)^2+2(1)}$ $\implies\mathsf{a=3+2}$ $\implies\boxed{\mathsf{a=5}}$ $\textsf{For x=2,}$ $\mathsf{S_2=3(2)^2+2(2)}$ $\implies\mathsf{a+(a+d)=12+4}$ $\implies\mathsf{2a+d=16}$ $\implies\mathsf{2(5)+d=16}$ $\implies\mathsf{10+d=16}$ $\implies\boxed{\mathsf{d=6}}$ $\underline{\textsf{Answer:}}$ $\textsf{First term is 5 and common difference is 6}$ Find more: in an AP if s3=24 and s4=30 then find A4 ... please FRIENDS SOLVE it fast it's urgent please friends ... brainly.in/question/18360783

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$\underline{\textsf{Given:}}$