Respuesta :
Answer:
x²+5x-49
Step-by-step explanation:
-7² -x+6x+x²
combine like terms
-x+6x is 5x
simplify -7² is -49
now rewrite the equation
x²+5x-49
Answer:
-7^2-x+6x+x^2= - x^2 +5x -49
Step-by-step explanation:
you have to calculate the sum of the similiars terms
and then reorder them using the commutative property
