Question

Find the least number that must be added to 15120 to make it a perfect square

Answer 1

after doing long division u will get the quotient as 122

${122 }^{2} = 14884$
${123}^{2} = 15129$
so subtract 15129 -15120

= 9


so 9 must be added to make it a perfect square



hope it helped uu

Answer 2

Heya ☺

By the long division method we will get quotient 122.

122^2 = 14,884

123^3 = 15,129

Required number to be added

= 15,129 - 15,120

= 9

Hence , 9 must be added to 15,120 to make it a perfect square.

Thanks