(5х+2)^2 умоляю помогите, срочно надо

Question

(5х+2)^2 умоляю помогите, срочно надо

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Answer 1

(5х+2)^2=25x^2+20x+4.........

Comments

5x2+4-10x

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d=16+2*5*10=116

Answer 2

(5x+2)^2=25x^2+20x+4