Question

i) Subtract the x2 + 4xy+3y2 from 8x2 - 3xy + 6y2
i) Simplify: (8° +7°) + (9° -7°)​

Answer 1

Step-by-step explanation:

${x}^{2} + 4xy + 3 {y}^{2}from8 {x}^{2} - 3xy + 6 {y}^{2} \\ 8 {x}^{2} - 3xy + 6 {y}^{2} - ( {x}^{2} + 4xy + 3 {y}^{2}) \\ 8 {x}^{2} - 3xy + 6 {y}^{2} - {x}^{2} - 4xy - 3 {y}^{2} \\ 7 {x}^{2} - 7xy + 3 {y}^{2} \\ ( {8}^{0} + {7}^{0}) + ( {9}^{0} - {7}^{0}) \\ (1 + 1) + (1 - 1) \\ 2 + 0 \\ 2$