Question
Question 9/Multiple Choice Worth 1 points) (07.03 MC) Factor completely 2x^2+9x+4 (2x+2)(x+2) (2x+1)(x+4) (2x+4)(x+1) (2x+2)(x+4)
Solution
4.1
(212 Votos)
André
Profissional · Tutor por 6 anos
Resposta
To factor the quadratic expression
completely, we need to find two binomials whose product gives us the original quadratic expression.First, let's rewrite the quadratic expression in standard form:
We need to find two numbers that multiply to
(the product of the coefficient of
and the constant term) and add up to
(the coefficient of
).The numbers that satisfy these conditions are
and
, because:
Next, we split the middle term
using these two numbers:
Now, we group the terms in pairs:
Factor out the greatest common factor (GCF) from each pair:
Notice that \((x + 4)\) is a common factor:
So, the completely factored form of
is:
Therefore, the correct answer is: