Question

fctorise (x+y,)²-(x-y)²​

Answer 1

Answer:

0

Step-by-step explanation:

x+y+x-y * x+y-x-y

2x * 0

= 0

Answer 2

Answer:

4xy

Step-by-step explanation:

There are two ways that i know

1 methord

$( {x + y})^{2} - ( {x - y)}^{2}$

exand it

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

open the bracets....

${x}^{2} + 2xy + {y}^{2} - {x }^{2} + 2xy - {y}^{2}$

simplify

$2xy + 2xy = 4xy$

2) methord

${a}^{2} - {b}^{2} = (a + b)(a - b)$

${((x + y) + (x - y))} \times {((x + y) - (x - y))}$

open brackets ....

$(x + y + x - y)(x + y - x + y)$

$2x\times 2y$

$4xy$

Thank u

brainliest plzzzz