Question

find the sum of 2x2-3y2,9x2+6y2,-3x2-5y2​

Answer 1

Step-by-step explanation:

$2 {x}^{2} - 3 {y}^{2} + 9 {x}^{2} + 6 {y}^{2} = 11 {x}^{2} + 3 {y}^{2}$

$11 {x}^{2} + 3 {y}^{2} - 3 {x}^{2} - 5 {y}^{2} = 8 {x}^{2} - 2 {y}^{2}$

this is the answer

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