Math, asked by mohammadrazi1050, 4 months ago

Multiply.
(i) 1 - x + y by 1 + x + y

Answers

Answered by aashishkumar202002

1

(1-(x+y))(1+(x+y))

1²-(x+y)²

1-x²+y²+2xy

Answered by yakobgbe1726

1

Answer:

(1-x+y)*(1+x+y)=

=(1+y)^2- x^2

=1+y^2+2y-x^2

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