Question

This
If A = 2y2 + 3x – x², B = 3x2 - y² and C = 5x2 – 3xy then find
(i) A+B (ii) A - B (iii) B+C (iv) B-C (v) A+B+C (vi) A+B-C
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Answer 1

Step-by-step explanation:

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Answer 2

• Answer:

(i)y²+2x²+3x

(ii)3y²-4x²+3x

(iii)8x²-y²-3xy

(iv)-2x²-y²+3xy

Step-by-step explanation:

(i)A+B=2y²=3x-x²+3x²-y²

         =y²+2x²+3x

(ii)A-B=2y²+3x-x²-(3x²-y²)

         =2y²+3x-x²-3x²+y²

         =3y²-4x²+3x

(iii)B+C=3x²-y²+5x²-3xy

           =8x²-y²-3xy

(iv)B-C=3x²-y²-(5x²-3xy)

          =3x²-y²-5x²+3xy

          = -2x²-y²+3xy

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