Question

The value of p(x)=4x+3x+1 at x = -1 B) 3 A) 4 C 2 the polynomial x-1 is​

Answer 1

Given polynomial is p(x)=4x

2

−3x+7

We need to find value of polynomial at x=1.

Then put the value of x=1 in the given polynomial, we get

p(x)=4(1)

2

−3(1)+7

⇒p(x)=4×1−3×1+7

⇒p(x)=4−3+7

⇒p(x)=11−3=8

So, value of polynomial is 8.

Answer 2

Answer:

The answer is option C) 2

Step-by-step explanation:

For getting the value of the polynomial we put the value of x in the following given equation:

p (x) = 4$x^{2}$ + 3x + 1

Therefore at x = -1 we have

⇒ p (-1) = 4 × $(-1) ^{2}$ + 3 × (-1) + 1

⇒ p (-1) = 4 -3 +1

⇒p (-1) = 1 + 1

⇒p (-1) = 2

Therefore the value of the polynomial is 2

Hence we have the correct option to be option c.