(Tough day dividing polynomials and I'm still lost!) Please help me my hands are legit numb:)
1 answer:
Answer:
Option D. 9
Step-by-step explanation:
There are two ways to obtain the answer to the question.
Method 1:
Let 2x + 1 = 0
Making x the subject, we have
2x + 1 = 0
Collect like terms
2x = –1
Divide both side by 2
x = –1/2
Now, put the value of x into the expression 4x³ – 6x² – 8x + 7, we have:
4x³ – 6x² – 8x + 7
x = –1/2
4(–1/2)³ – 6(–1/2)² – 8(–1/2) + 7
4(–1/8) – 6(1/4) – 8(–1/2) + 7
–1/2 – 3/2 + 4 +7
– 4/2 + 4 + 7
– 2 + 4 + 7
= 9
Method 2:
Divide 4x³ – 6x² – 8x + 7 by 2x + 1
Please see attached photo for explanation.
You might be interested in
Answer: The value of <em>a</em> should be 3.11.
Step-by-step explanation:
Since we have given that
We need to find the value of a so that it would yield a system of linear equations with NO solutions.
As we know the condition of no solutions, it means the lines should be parallel.
i.e.
Consider the first two terms:
So, the value of<em> a</em> should be 3.11.