What is the quotient in simpliest form? State any restrictions on the variable.
x+2/x-1 divided by x+4/x^2+4x-5.
My answer (x+2)(x+5)/x+4; don't get the restriction part either -5,-4 or 1,-4,-5
Can someone please help?
that's correct! for Connections Academy its
B p-8; -4
C q+8/q-8; -3,8
D z^2+2z/z+3; -1,0,-3
D (x+2)(x+5)/x+4; 1,-4,-5
B
These are 100% for Algebra 2 Unit 3 Rational Functions Lesson 4 Rational Expressions
For typing of this kind of question in this format, brackets are of critical importance
I will assume you meant:
(x+2)/(x-1) ÷ ( (x+4)/(x^2 + 4x - 5) )
then..
= (x+2)/(x-1) * (x^2 + 4x - 5)/(x+4)
= (x+2)/(x-1) (x+5)(x-1)/(x+4)
= (x+2)(x+5)/(x+4) , x ≠ 1, -5,-4
In the original divisor of (x+4)/((x-1)(x+5)
is x = 1 or -5, that expression would be undefined, so we restrict those values
similarly looking at the final answer, we are dividing by x+4.
If x = -4 , we could be dividing by zero, a no-no
So we have restrictions of 1, -5, -4
your answer is correct, other than the above restrictions.