Answer: which is the same as
If the math notation does not load properly, or the font size is too small, then it says ( (x+4)(x-1) )/( (x+4)(x+2) ) which is the same as (x^2+3x-4)/(x^2+6x+8)
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Explanation:
We see that x cannot equal -2, as this prevents the denominator (x+2) from becoming zero. If x = -4, then x+4 = 0. So x not allowed to be -4 means (x+4) is prevented in being zero, and this is the missing factor in the denominator. We can never divide by zero.
Multiply top and bottom of this given fraction by (x+4) to get
Note how the (x+4) terms divide and cancel to get back to the original fraction given. The portion sticks around to make sure the domains line up properly.
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Optionally you can expand out each product in the numerator and denominator to get
(x+4)(x-1) = x^2-x+4x-4 = x^2+3x-4
(x+4)(x+2) = x^2+2x+4x+8 = x^2+6x+8
I used the FOIL rule
So,
Answer:
the zero exponent indicates that there are no factors of a number. for example simplify each of the following expressions using the zero exponent rule for exponents.write each expression using only positive exponents.
the product of powers property states that when multiplying two exponents with the same base , you can addthe exponents and keep the base
Answer:
13.8 I believe is the answer
First, we multiply 1/5 by 4, and 3/4 by 5.... So we use 19/20 of the flour already.
There was 1/20 fraction of flour left so divide that by 5 you get- 1/100 There was 1/100 of the flour in each of the 5 containers.