Which value of b makes the trinomial a perfect square

12

Step-by-step explanation:

Given trinomial is .

Now we need to find the value of b that will make the trinomial a perfect square.

compar with  . we get:

a=x and b=6

then middle term -2ab=-2(x)(6)=-12x

compare -12x with -bx, we get b=12

Hence choice C. 12 is correct.

The correct answer is option C.  12

Step-by-step explanation:

It is given a quadratic expression

x² - bx +  36

To find the value of b

From the above expression we can see that 36 is a perfect square,

6² = 36

We can write this expression as ( x - 6)² if b = 12

(x - 6)² = x² - 12x + 36

Therefore the correct answer is option C.   b = 12

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.