Question

correct the following incorrect expression to make each of them a perfect square: (i) x²+18x+80​

Answer 1

Answer:

$( {x}^{2} + 18x + 80)$

$( {x}^{2} + 10x + 8x + 80)$

$x(x + 10) + 8(x + 10)$

$(x + 9)(x + 10)$