Question

Factorise - 4y^2+20y+25

Answer 1

step by step explanation

Answer 2

$4 {y }^{2} + 20y + 25$

${(x + y)}^{2} = {x}^{2} + y {}^{2} + 2xy$

so ,

${(2y)}^{2} + 2(2y)(5) + {5}^{2}$

it becomes

${(2y + 5)}^{2}$