If the quadratic equation x^2 + 18x +74=0 is rewritten in the form (x-p)^2 = Q what is the value of Q?

A) -155

B) -74

C) 7

D) 9

Step-by-step explanation:

The given quadratic equation:

To find, the value of Q = ?

Adding both sides 81, we get

⇒ - 2(x)8 + = 81 - 74

Using the algebraic identity,

⇒ is the form of  

Here, P = 9 and Q = 7

Thus, the value of Q "option C) 7" is correct option.

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents