Question

Plz Solve the Problem
Step by step ​

Answer 1

Answer:

$(a {y}^{2} + 3xy -9 {x}^{2} ) - ( - 4 {y}^{2} + 8xy + b {x}^{2}) = 10 {y}^{2} - 5xy - 10 {x}^{2} \\ = a {y}^{2} + 3xy - 9 {x}^{2} + 4 {y}^{2} - 8xy - b {x}^{2} \\ = {y}^{2} (a + 4) - 5xy - (9 + b) {x}^{2} \\ \\ on \: comparing \\ \\ \\ a + 4 = 10 \\ therefore \: a = 6 \\ \\ \\ 9 + b = 10 \\ therefore \: b = 1 \\ \\ \\ hope \: this \: helps \: plz \: mark \: as \: brainliest$