Question

10. Write the formula of : (x+y)2,(x-y)2 and (x2-y2​

Answer 1

Step-by-step explanation:

(x+y)2=x2+ y2+2xy

(x-y)2=x2+y2-2xy

(x2-y2)=(x+y) (x-y)

Answer 2

Step-by-step explanation:

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