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:
Step-by-step explanation:
Thank you
The answer.
14kg 450gram - 20kg = 5kg 550gram
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