Question

Subtract (2x2+5xy-7) from the sum of (x2

-4xy+3) and (4x2+xy+9).​

Answer 1

Answer:

$3x^{2} -8xy+19$

Step-by-step explanation:

$x^{2} -4xy+3+4x^{2} +xy+9-(2x^{2} +5xy-7)\\=5x^{2} -3xy+12-2x^{2} -5xy+7\\=3x^{2} -8xy+19$