Question

a) Add 2x2 + xy - y2 and – x2 + 2xy + 3y2​

Answer 1

Answer:

${2}^{2} + xy - {y}^{2} - {x}^{2} + 2xy + {3y }^{2} \\ {x}^{2} + 3xy - {2y}^{2}$

Step-by-step explanation:

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Answer 2

Answer:

2x2 +xy -y2+(-x2+2xy+3y2)

2x2+ xy - y2 - x2 + 2xy + 3y2

2x2 - x2 + xy +2xy -y2 + 3y2

x2 + 3xy + 2y2