Question

find value of the polynomial p(x)=4x+2, x=2​

Answer 1

Answer:

brainlist plzplzplzplzplz

Step-by-step explanation:

The value of a is 4.

Explanation:

A Zero of a polynomial in x is a numerical value which, when using it in place of x and makes the polynomial equals to 0.

Given the polynomial:

p(x)=4x^2+2x-5a

2 is the zero of the polynomial then,

p(2)=4(2)^2+2(2)-5a =0

⇒4 \cdot 4 +2\cdot 2-5a=0 or

16+4-5a=0

20 -5a =0 or

5a =20

Divide by 5 to both sides of an equation;

\frac{5a}{5} =\frac{20}{5}

simplify;

a =4

Therefore, the value of a is 4.

Answer 2

Answer:

10

Step-by-step explanation:

I thik you understand this