## 5. Multiply and verify the result by taking x = 1, y = -2. (3x – y) (3x + y) (ii) (x – 2xy + y) (x – 1) (iii) (x + y

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## Answers ( )

Answer:## 27

Step-by-step explanation:X=1

Y=-2

(iii)(x+y-2xy)(x-4y+xy)

=>{1-2-2(1)(-2)} {1-4(-2)+(1)(-2)}

=>{1-2+4} {1+8-2}

=>{5-2} {9-2}

=>{3}{7}

## =>27

Hope this helps✌️

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Answer:The first x is the horizontal coodinate (abscisa) and second is the vertical coordinate (ordenate). Both are coordinates. (x,y) has the meaning of a complex number: x is the real part and y is the imaginary part: x+yi. (x,y) has the meaning of a plane’s vector from origin of coordinates.Aug