Question

2x²+6x-3xy and 4xy + 6x²
add the following ​

Answer 1

Answer:

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Step-by-step explanation:

We have

(i) 3x + 7x = (3 + 7)x = 10x

(ii) -5xy + 9xy = ( -5 + 9)xy = 4xy

Answer 2

$= 2 {x}^{2} + 6x - 3xy + 4xy + 6 {x}^{2} \\ \\ = 2 {x}^{2} + 6 {x}^{2} - 3xy + 4xy + 6x \\ \\ = 8 {x}^{2} + xy + 6x$