To find the product of the polynomials \((2x + 1)(x - 4)\), you can use the distributive property (also known as the FOIL method for binomials).
-
First: Multiply the first terms:
\(2x \cdot x = 2x^2\) -
Outer: Multiply the outer terms:
\(2x \cdot (-4) = -8x\) -
Inner: Multiply the inner terms:
\(1 \cdot x = 1x\) -
Last: Multiply the last terms:
\(1 \cdot (-4) = -4\)
Now, combine all of these results:
\[ 2x^2 - 8x + 1x - 4 \]
Combine the like terms \((-8x + 1x)\):
\[ 2x^2 - 7x - 4 \]
So the product of the polynomials is:
\[ 2x^2 - 7x - 4 \]
Filling in the blanks:
_ \(2\) _ \(-7\) _ \(-4\)