Respuesta :
Answer: you just solve for M
M = x^2 + 11xy – y^2
Step-by-step explanation:
M + (5x^2 –2xy) = 6x^2 +9xy–y^2
M = 6x^2–5x^2 + 9xy+2xy – y^2
M = x^2 + 11xy – y^2
Check:
x^2 + 11xy – y^2 + 5x^2 – 2xy
6x^2 + 9xy – y^2
Answer:
M=x^2+11xy-y^2
Step-by-step explanation:
To find M you have to subtract.
6x^2+8xy-y^2-(5x^2-2xy)
6x^2+9xy-y^2-5x^2+2xy
6x^2+11xy-y^2-5x^2
x^2+11xy-y^2
