Question 6 of 10 What is the most logical first step in solving the equation x2 +6x+9 - 10?
A Factor the left side of the equation
B. Subtract 10 from both sides of the equation
C. Take the square root of both sides of the equation
D. Subtract 9 from both sides of the equation
SUBMIT

A.factor the left side of the equation

sorry but to tell u the answer, I need to know this

is there an equal sign between 9 and 10 or it's just a minus sign?

I mean if it is a minus sign the first thing to do to solve the equation is 9-10 which gives you -1. but if there is an equal sign the first step is to subtract 10 from both sides of the equation which means your answer will be option B.

Correct option is:

B.) between 2.5 and 3.0 and between 4.0 and 4.5

Step-by-step explanation:

The roots of a polynomial function p(x) lies in an interval (a,b) if:

p(a)>0 and p(b)<0

         or

p(a)<0 and p(b)>0

Here,

f(2.5)>0 and f(3.0)<0

Hence, f(x) has a root between 2.5 and 3.0

Also, f(4.5)>0 and f(4.0)<0

Hence, f(x) has a root between 4.0 and 4.5

Hence, Correct option is:

B.) between 2.5 and 3.0 and between 4.0 and 4.5