Question

What is the simplest form of the expression 2x(x − 6) − 7x2 − (13x − 3)?

A.) 5x2 − 25x + 3
B.) -5x2 − 25x + 3
C.) -5x2 + x + 3
D.) -5x2 − 25x − 3

Answer 1

First reduce the brackets
Next Expand the expression
Then gather all like terms
And lastly simplify

Answer: B)

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Answer 2

We have the following expression:
2x (x - 6) - 7x2 - (13x - 3)
We will solve the expression step by step.
We solve the parentheses:
2x ^ 2 - 12x - 7x ^ 2 - 13x + 3
Now we add similar terms:
x ^ 2 (2-7) + x (-12-13) + 3
Rewriting:
-5x ^ 2 - 25x + 3
Answer:
The simple form of the expression is:
B.) -5x2 - 25x + 3