There are y2-9y+20 students to be arranged in a field during morning assembly of a school. Find the number of rows and columns in which these can be arranged such that no student is left out. PLZ ANSWER DO NOT SPAM!
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Step-by-step explanation:
we can choose the either way
there can be 1 row and 8 columns and 8 rows and 1 columns
y^2-9y+20 =0
= y^2 - 8y-1y +20 =0
= y(y-8) - 1(y-20) =0
= ( y-1)(y-8) = 0
= (y-1) =0
= (y-8) =0
y=1
y=8
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