Wednesday
April 16, 2014

Homework Help: Algebra

Posted by Serra on Monday, August 20, 2007 at 9:16am.

Find the values of the polynomial for the given values of the variable.

-x2-5x-6

x=-3
x=-2



I got 0 for the first one and 0 for the second. Am I figuring them wrong? (and that is an x squared, not 2x)

-(-3)^2 -5(-3)-6
-(9)+15-6=0



Thanks!

you are right in both cases

-x^2-5x-6
=-(x^2+5x+6)
=-(x+2)(x+3)

notice if this had been an equation equal to zero,
x=-2 and x=-3 would have been solutions.
That is why both values gave you a zero answer.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Math - Q.1)If one zero of the polynomial 3x2-kx-2 is 2 find the other zero.allso...
math - algebra - find the values of each of the following polynomials for the ...
algebra 2 - find the value of this polynomials for the given values of the ...
math - With regards to question J: The variables x and y are connected by the ...
algebra2 - solve the equation: First: x + 3y = 5 Second: 3x - y = 5 should i use...
Math - i need help finding the slope of the line that passes through each pair ...
word problem - Bobís Barber Shop estimates their gross revenue for the second ...
Algebra - A function is given. Determine the average rate of change of the ...
college algebra - A function is given. Determine the average rate of change of ...
polynomial function - Please check my answers. Find the y-intercept of the ...

Search
Members