Question

⭐780 students in rows and columns. Each row has equal number of students and each column has equal number of students. if the number of students in each row is 4 more than the number of rows.,find the number of students in each row.⭐

CLASS 10 CHAPTER :QUADRATIC EQUATIONS

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Answer 1

hey mate
here's the solution

Answer 2

Answer:

30

Explanation:

x(x+4) = 780

x2 + 4x - 780 = 0

x2 + 30x - 26x - 780 = 0

x(x + 30) - 26(x - 30) = 0

(x+30) (x-26) = 0

x = -30 , 26

since we cannot take the no. in negative, x = 26

26 + 4 = 30