3 years ago

Please solve this and show your working out. thanks!

Mathematics

1 answer:

julia-pushkina [17]3 years ago

7 0

Answer:

first

area of rectangle = l*b

= (3x-y+4) ( X+7)

= 3x²-xy + 4x+21x-7y+28

= 3x²-xy +25x-7y +28

Area of square = l²

= (x-2)²= x²- 4x +4

area of shaded region=( 3x²-xy +25x-7y +28) -(x²- 4x +4)

=2x²-xy +29x-7y+24

Step-by-step explanation:

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