Question

Add the expressions

2x² +4y² , x² + 5y² and 3x² -2y²

(step by step explain)​

Answer 1

2X² + 4Y² + X² + 5Y² + 3X² - 2Y²

2X² + X² + 3X² + 4Y² + 5Y² - 2Y²

6X² + 9Y²-2Y²

6X² + 7Y²

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Answer 2

Answer:

$(2 {x}^{2} + 4 {y}^{2} ) + ( {x}^{2} + 5 {y}^{2} ) + (3 {x}^{2} - 2 {y}^{2} ) \\ = > (2 {x}^{2} + {x}^{2} + 3 {x}^{2} ) + (4 {y}^{2} + 5 {y}^{2} - 2 {y}^{2} ) \\ = > 6 {x}^{2} + 7 {y}^{2}$

Hope it helps you mate, good luck.