Math, asked by anayaconnects, 17 days ago

Expand: (2x+y+5)(2x+y-9)

Answers

Answered by kiran12355

1

Step-by-step explanation:

(2x+y+5)(2x+y-9)

=2x(2x+y-9)+y(2x+y-9)+5(2x+y-9)

=4x^2+2xy-18x+2xy+y^2-9y+10x+5y-45

=4x^2+4xy-8x+y^2+4y-45

=4x^2+y^2+4xy-8x+4y-45

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